B2B, or business-to-business, describes commercial activity where one business sells products or services to another business instead of selling mainly to individual consumers. It is one of the most important terms in industry analysis because it changes how companies price, sell, contract, finance, report, and grow. Understanding B2B helps you read annual reports, compare sectors, assess business models, and interpret real-world commercial behavior more accurately.

1. Term Overview

• Official Term: B2B
• Common Synonyms: Business-to-business, business sales to businesses, commercial sales between firms
• Alternate Spellings / Variants: B-to-B, B to B, business-to-business
• Domain / Subdomain: Industry / Sector Taxonomy and Business Models
• One-line definition: B2B is a business model or commercial classification in which one business sells goods or services to another business.
• Plain-English definition: If the buyer is a company, factory, hospital, retailer, bank, school, or other organization buying for operational use rather than personal use, the transaction is usually B2B.
• Why this term matters: B2B companies usually have different customers, contracts, pricing, sales cycles, margins, working-capital needs, regulations, and valuation patterns than B2C companies.

Important note on ambiguity: In this tutorial, B2B means business-to-business. In some specialized discussions, the same letters may informally refer to other phrases such as “back-to-back,” but that is a different concept.

2. Core Meaning

At its core, B2B means one organization creates value for another organization.

What it is

A B2B relationship exists when:

• the seller is a business
• the buyer is another business or institution
• the purchase is made for business use, not mainly for personal consumption

Examples:

• a steel producer sells metal sheets to an automobile company
• a software company sells payroll software to enterprises
• a logistics company handles transport for manufacturers
• a bank provides cash-management services to corporations

Why it exists

No company can efficiently produce everything it needs by itself. Modern economies depend on specialization:

• manufacturers buy components
• retailers buy inventory
• companies buy software
• hospitals buy medical devices
• banks buy cybersecurity systems
• governments buy consulting, hardware, and infrastructure services

B2B exists because specialization lowers cost, increases quality, and allows scale.

What problem it solves

B2B solves the problem of organizational dependence. Businesses need inputs, systems, services, financing, distribution, data, and infrastructure from other businesses.

Without B2B:

• supply chains would break down
• firms would need to vertically integrate everything
• procurement would become inefficient
• innovation would slow because specialist providers would disappear

Who uses it

B2B is used by:

• manufacturers
• wholesalers and distributors
• enterprise software vendors
• consultants and agencies
• banks and fintech firms
• logistics providers
• healthcare suppliers
• institutional service providers
• analysts, investors, regulators, and policymakers classifying markets

Where it appears in practice

You will see B2B in:

• company descriptions and annual reports
• equity research notes
• market segmentation studies
• procurement and supply-chain planning
• revenue model analysis
• SaaS and technology business evaluation
• industrial and wholesale sector classification
• government and regulatory discussions of commercial transactions

3. Detailed Definition

Formal definition

B2B is a commercial relationship or business model in which a firm sells products or services primarily to other firms or organizations rather than directly to end consumers.

Technical definition

In technical business analysis, B2B is classified by the identity and function of the buyer:

• the buyer is an enterprise, institution, reseller, or professional organization
• the product or service is used in business operations, production, resale, compliance, or internal workflows
• the transaction often involves contracts, negotiated pricing, account management, and repeat purchases

Operational definition

In practical industry analysis, a company is often treated as primarily B2B when a substantial majority of its revenue comes from customers such as:

• corporations
• SMEs
• distributors
• retailers
• hospitals
• schools and universities
• banks and insurers
• industrial buyers
• institutional clients

If a company sells to both consumers and businesses, analysts usually examine:

• revenue split by customer type
• channel mix
• product use case
• pricing and contract structure

Context-specific definitions

In manufacturing

B2B often means sale of:

• raw materials
• components
• capital goods
• industrial machinery
• maintenance contracts

In software and technology

B2B usually refers to:

• enterprise software
• cloud infrastructure
• cybersecurity solutions
• ERP, CRM, HR tech, workflow tools
• API and data services

In wholesale and distribution

B2B refers to businesses supplying inventory to:

• retailers
• restaurants
• dealers
• contractors
• professional users

In financial services

B2B may include:

• merchant acquiring
• treasury and cash management
• institutional data services
• lending platforms for businesses
• financial infrastructure and software sold to other firms

In legal or regulatory usage

Some legal systems treat B2B contracts differently from consumer contracts because both parties are assumed to be commercial entities. However, the exact legal treatment varies by country, sector, and contract type. Always verify the local commercial, tax, competition, and data rules.

4. Etymology / Origin / Historical Background

Origin of the term

The phrase business-to-business emerged from commercial and industrial marketing language. The abbreviation B2B became widely popular during the internet and e-commerce boom of the late 1990s and early 2000s, especially when businesses began comparing:

• B2B commerce
• B2C commerce
• electronic procurement
• digital marketplaces

Historical development

Before the internet

B2B existed long before the term became fashionable. Traditional industrial economies already had:

• supplier-manufacturer relationships
• wholesaler-retailer networks
• corporate banking
• inter-firm contracting
• commercial distribution

1960s to 1980s

As supply chains became more complex, firms adopted:

• industrial sales teams
• vendor management
• EDI systems
• structured procurement
• enterprise planning processes

1990s to 2000s

The label B2B gained mainstream business usage with:

• e-commerce platforms
• online procurement
• ERP software adoption
• dot-com business model classification
• digital catalog and invoice systems

2010s

The term expanded beyond industrial trade into:

• B2B SaaS
• cloud subscriptions
• API businesses
• platform-enabled services
• account-based marketing
• data-driven customer success

2020s and beyond

B2B now commonly includes:

• AI-enabled enterprise tools
• embedded finance for businesses
• digital procurement ecosystems
• integrated logistics software
• recurring-revenue service models
• hybrid direct-and-channel sales systems

How usage changed over time

Originally, B2B mostly described inter-firm trade. Today it is also used to describe:

• business models
• go-to-market strategies
• stock market narratives
• valuation categories
• software pricing logic
• customer-acquisition structures

5. Conceptual Breakdown

B2B is not just “selling to businesses.” It has several layers.

5.1 Buyer Type

• Meaning: The customer is an organization, not mainly an individual consumer.
• Role: Defines the commercial context.
• Interaction with other components: Buyer type affects pricing, contracts, sales effort, procurement rules, and compliance needs.
• Practical importance: A company can look similar on the surface but behave very differently if its buyer is an enterprise rather than a household.

5.2 Offering Type

• Meaning: What is being sold—goods, software, services, inputs, data, financing, infrastructure, or equipment.
• Role: Determines margin structure, delivery model, and renewal behavior.
• Interaction: A B2B software subscription behaves differently from a B2B machinery sale or a commodity input contract.
• Practical importance: Analysts must not assume all B2B businesses are alike.

5.3 Buying Process

• Meaning: How the customer decides to buy.
• Role: B2B buying often includes multiple stakeholders such as users, managers, procurement teams, finance teams, and legal teams.
• Interaction: More stakeholders usually mean longer sales cycles, more documentation, and more negotiation.
• Practical importance: Sales forecasting and working-capital planning depend heavily on the buying process.

5.4 Revenue Model

• Meaning: How money is earned.
• Common forms: one-time sale, annual contract, subscription, license, usage-based pricing, project fee, maintenance contract, transaction fee
• Role: Shapes cash flow, revenue recognition, predictability, and valuation.
• Interaction: Subscription-based B2B models usually emphasize retention, while project-based models emphasize pipeline conversion and capacity utilization.
• Practical importance: Two B2B firms with the same revenue may deserve different valuations because their revenue quality differs.

5.5 Go-to-Market Channel

• Meaning: How the seller reaches customers.
• Forms: direct sales, distributors, dealers, marketplaces, partners, system integrators, resellers
• Role: Influences scale, margins, control, and customer ownership.
• Interaction: Channel choice can affect brand power, pricing discipline, and conflict with direct sales teams.
• Practical importance: Investors and operators need to understand whether growth comes from direct selling, partners, or channel expansion.

5.6 Contract and Relationship Structure

• Meaning: The legal and commercial structure of the customer relationship.
• Role: B2B often involves SLAs, negotiated payment terms, implementation milestones, minimum order quantities, warranties, and renewal clauses.
• Interaction: Contract structure affects revenue recognition, collections, and risk transfer.
• Practical importance: A signed contract does not always equal recognized revenue or collected cash.

5.7 Unit Economics and Performance Metrics

• Meaning: The measurable economics of acquiring and serving customers.
• Examples: ACV, CAC, payback period, NRR, churn, DSO, gross margin, customer concentration
• Role: Helps assess quality and sustainability.
• Interaction: Long contracts may look attractive, but if collections are slow or retention is weak, the model may still be poor.
• Practical importance: Good B2B analysis requires both strategic and numeric judgment.

6. Related Terms and Distinctions

Related Term	Relationship to Main Term	Key Difference	Common Confusion
B2C	Another business model classification	Seller serves individual consumers	People assume all online selling is B2C
B2G	Close cousin of B2B	Buyer is government or public agency	Government sales are sometimes loosely grouped into B2B, but procurement rules are usually different
B2B2C	Hybrid model	A business sells through another business to reach the consumer	Often mistaken for pure B2B
D2C	Opposite route in many sectors	Brand sells directly to consumers	Not all digitally native firms are D2C
Wholesale	Often a subset of B2B	Focuses on resale of goods in bulk	B2B is broader than wholesale
Enterprise sales	Common B2B sales approach	Usually targets large organizations specifically	Not every B2B company sells only to large enterprises
Channel sales	Sales via partners or distributors	Describes route to market, not customer type alone	Channel sales can be B2B or B2C
OEM	Common B2B relationship	One business supplies components/products used in another company’s final product	OEM is a specific B2B arrangement, not a synonym for all B2B
SaaS	Can be B2B or B2C	Software delivery model, not customer category	Many assume all SaaS is B2B
Institutional sales	Overlapping term	Focuses on organizational buyers such as hospitals, schools, funds, or enterprises	Institutional does not always mean private-sector B2B
Back-to-back	Different concept entirely	Refers to mirrored or linked arrangements in some finance/operations contexts	Same abbreviation may mislead readers

Most commonly confused distinctions

• B2B vs wholesale: Wholesale is usually goods sold in bulk for resale; B2B includes software, services, finance, and inputs.
• B2B vs enterprise: Enterprise is a segment within B2B, usually larger accounts.
• B2B vs B2G: Both serve organizations, but public-sector sales often involve tenders, approvals, and procurement rules.
• B2B vs B2B2C: In B2B2C, the business customer is a channel to the end consumer.

7. Where It Is Used

Finance

B2B matters in finance because it affects:

• revenue predictability
• customer concentration
• contract value
• sales efficiency
• cash conversion
• financing needs

Corporate finance teams evaluate B2B models differently from consumer models because payment cycles and receivables are often more important.

Accounting

In accounting, B2B appears in areas such as:

• revenue recognition on contracts
• contract assets and liabilities
• deferred revenue for subscriptions
• trade receivables
• expected credit loss considerations
• segment disclosures
• customer concentration disclosures where applicable

The accounting standards are usually general standards, not “B2B standards,” but B2B business models create distinct accounting patterns.

Economics

In economics, B2B corresponds to transactions involving:

• intermediate goods
• producer services
• capital formation
• supply-chain linkages
• business services productivity

It is important for input-output analysis and industrial structure mapping.

Stock Market

Investors and analysts use B2B to classify listed companies such as:

• industrial suppliers
• enterprise software firms
• distributors
• commercial service providers
• logistics firms
• business-information providers

B2B labels affect peer comparison, valuation multiples, and growth expectations.

Policy and Regulation

B2B matters in policy because governments monitor:

• commercial contracts
• competition and market power
• late payments to suppliers
• tax invoicing and reporting
• public procurement
• cross-border trade compliance
• data privacy and cybersecurity in business services

Business Operations

In daily operations, B2B appears in:

• procurement
• tendering
• key account management
• pricing approval
• implementation and onboarding
• after-sales support
• supply-chain planning

Banking and Lending

Banks and lenders care about B2B because it influences:

• receivable financing
• working-capital lines
• customer concentration risk
• invoice discounting
• covenant design
• industry cyclicality

Valuation and Investing

B2B classification affects how investors think about:

• recurring vs project revenue
• margin durability
• switching costs
• retention
• customer acquisition cost
• sector cyclicality
• revenue quality

Reporting and Disclosures

Public companies often describe themselves as B2B in:

• annual reports
• management commentary
• investor presentations
• operating segment discussions
• risk-factor sections

Analytics and Research

Researchers use B2B in:

• market-sizing studies
• funnel analysis
• cohort retention analysis
• industry value-chain mapping
• procurement studies
• business sentiment surveys

8. Use Cases

8.1 Industrial Component Supply

• Who is using it: A bearings manufacturer selling to automotive OEMs
• Objective: Supply critical parts used in final products
• How the term is applied: The supplier is classified as B2B because it sells inputs to another manufacturer
• Expected outcome: Repeat orders, technical integration, long-term supply agreements
• Risks / limitations: Customer concentration, cyclical demand, quality failure risk

8.2 B2B SaaS for Human Resources

• Who is using it: A software company selling payroll and HR systems to mid-sized firms
• Objective: Automate business processes
• How the term is applied: The software vendor operates a B2B subscription model with annual or multi-year contracts
• Expected outcome: Recurring revenue, upsell opportunities, strong retention if embedded
• Risks / limitations: Long implementation, switching resistance during sales, compliance burden

8.3 Wholesale Distribution to Retailers

• Who is using it: A distributor supplying packaged goods to independent retailers
• Objective: Move inventory efficiently through the trade channel
• How the term is applied: This is B2B because the customers are retail businesses, not households
• Expected outcome: Volume-driven revenue, broad account base, repeat orders
• Risks / limitations: Thin margins, inventory risk, price competition, working-capital pressure

8.4 Logistics and Freight Services

• Who is using it: A third-party logistics provider serving exporters and manufacturers
• Objective: Handle transport, warehousing, and customs coordination
• How the term is applied: The provider is a B2B service company supporting commercial operations
• Expected outcome: Sticky relationships if service quality is high
• Risks / limitations: Fuel cost exposure, operational disruptions, low differentiation in some routes

8.5 Corporate Payments or Treasury Platform

• Who is using it: A fintech firm offering invoice automation and payment tools to businesses
• Objective: Improve business payment efficiency and control
• How the term is applied: The customer is a company using the platform in its finance operations
• Expected outcome: Transaction fees, subscription revenue, workflow lock-in
• Risks / limitations: Regulatory complexity, security risk, integration dependence

8.6 Contract Manufacturing

• Who is using it: A manufacturer producing goods for another brand owner
• Objective: Outsource production while maintaining brand control
• How the term is applied: The contract producer is a B2B supplier to the brand
• Expected outcome: Capacity utilization, long-term production contracts
• Risks / limitations: Margin pressure, quality audits, renegotiation risk

9. Real-World Scenarios

A. Beginner Scenario

• Background: A student sees that a bakery buys flour from a food wholesaler and sells bread to households.
• Problem: The student is confused about which part is B2B.
• Application of the term: The wholesaler-to-bakery transaction is B2B; the bakery-to-household transaction is B2C.
• Decision taken: The student classifies each transaction based on who buys and why.
• Result: The student correctly separates customer type from product type.
• Lesson learned: A product can move through both B2B and B2C stages in the same value chain.

B. Business Scenario

• Background: A startup builds compliance software for factories.
• Problem: Founders are using consumer-style digital ads and expecting quick purchases.
• Application of the term: They recognize that this is a B2B sale involving plant managers, IT teams, procurement, and finance.
• Decision taken: They switch to demos, pilot projects, account-based outreach, and ROI-based selling.
• Result: Fewer leads, but much higher conversion quality and larger deal sizes.
• Lesson learned: B2B requires a different sales process from mass-market consumer selling.

C. Investor / Market Scenario

• Background: An investor compares a B2B SaaS firm with a B2C e-commerce company.
• Problem: Both show the same revenue growth, but risk profiles are different.
• Application of the term: The investor analyzes B2B metrics such as retention, ACV, CAC payback, contract duration, and customer concentration.
• Decision taken: The investor gives more weight to recurring revenue quality than headline growth alone.
• Result: The investor avoids overvaluing growth that lacks durability.
• Lesson learned: In markets, “B2B” is not just a label; it changes how quality is measured.

D. Policy / Government / Regulatory Scenario

• Background: A tax authority rolls out broader electronic invoicing requirements for business transactions.
• Problem: Mid-sized suppliers struggle with invoicing compliance and buyer reconciliation.
• Application of the term: The reform mainly affects B2B invoicing and reporting flows.
• Decision taken: Companies upgrade ERP systems and invoice validation processes.
• Result: Better audit trails and potentially lower fraud, but short-term implementation cost rises.
• Lesson learned: B2B transactions often sit at the center of tax administration and formalization policy.

E. Advanced Professional Scenario

• Background: A global industrial equipment firm wants to shift from one-time hardware sales to bundled service contracts.
• Problem: Revenue is cyclical, and investors discount the business as a low-multiple hardware supplier.
• Application of the term: Management redesigns the B2B model around uptime guarantees, predictive maintenance, and multi-year enterprise accounts.
• Decision taken: The firm adds direct account teams for large clients and keeps distributors for smaller regions.
• Result: Revenue becomes more recurring, but implementation complexity and receivables management become more important.
• Lesson learned: In advanced practice, B2B strategy is about shaping revenue quality, not just identifying the customer.

10. Worked Examples

Simple Conceptual Example

A company sells office chairs to corporate offices, schools, and hospitals.

• The buyer is an organization.
• The purchase supports work operations.
• Orders may be bulk, negotiated, and invoiced.

This is B2B.

If the same company sells one chair to a person for home use through its website, that sale is B2C.

Practical Business Example

A cybersecurity vendor sells annual software licenses to banks.

• It uses a direct sales team
• Contracts are negotiated
• Pricing depends on number of users and modules
• Renewals matter as much as first-time sales

This is a classic B2B technology model. Success depends on retention, trust, compliance, and customer support—not just brand awareness.

Numerical Example

A B2B SaaS company closes 10 new customers in a year.

• Annual contract value per customer = $24,000
• Total new annual recurring revenue = 10 × $24,000 = $240,000
• Sales and marketing spend to acquire these customers = $120,000
• Gross margin = 80%

Step 1: Calculate CAC per customer

[ CAC = \frac{120,000}{10} = 12,000 ]

So the company spends $12,000 to acquire each new customer.

Step 2: Calculate monthly gross profit per customer

Annual gross profit per customer:

[ 24,000 \times 80\% = 19,200 ]

Monthly gross profit per customer:

[ \frac{19,200}{12} = 1,600 ]

Step 3: Calculate CAC payback period

[ CAC\ Payback\ Months = \frac{12,000}{1,600} = 7.5\ months ]

Interpretation: It takes 7.5 months of gross profit to recover the cost of acquiring a customer.

Advanced Example

A machine manufacturer used to sell only equipment through distributors. It now adds:

• installation services
• preventive maintenance contracts
• remote monitoring software
• spare-parts subscription plans

Result:

• Revenue becomes partly recurring
• Direct relationships with key accounts improve
• Gross margin may rise on services and software
• But implementation obligations, SLA commitments, and revenue recognition complexity also increase

This remains B2B, but the type of B2B has shifted from transactional product sales to solution-based relationship selling.

11. Formula / Model / Methodology

There is no single formula that defines B2B. B2B is a classification based on customer type and business use. However, analysts commonly use the following formulas to evaluate B2B business quality.

Common B2B Metrics

Metric	Formula	What it shows
ACV	Total annualized contract value / Number of contracts	Average annual value per customer contract
CAC	Sales and marketing spend for new customers / Number of new customers	Cost to acquire a customer
CAC Payback Months	CAC / Monthly gross profit per customer	Time needed to recover acquisition cost
LTV	Average customer gross profit per period × Expected customer life	Estimated lifetime economic value
LTV/CAC	LTV / CAC	Efficiency of customer acquisition economics
NRR	(Starting recurring revenue + Expansion – Contraction – Churn) / Starting recurring revenue × 100	Revenue retention and expansion within existing customers
DSO	Accounts receivable / Credit sales × Number of days	Collection speed

11.1 ACV

Formula:

[ ACV = \frac{TAV}{N} ]

Where:

• TAV = total annualized value of contracts
• N = number of contracts

Interpretation: Higher ACV usually means larger customers or deeper product adoption, but it may also imply longer sales cycles.

Sample calculation:

If annualized contract value totals $600,000 across 12 contracts:

[ ACV = \frac{600,000}{12} = 50,000 ]

So average annual contract value is $50,000.

Common mistakes:

• mixing one-time setup fees with recurring contract value without disclosure
• comparing ACV across businesses with different definitions
• assuming high ACV always means high quality

Limitations: ACV does not show margin, retention, or payment behavior.

11.2 CAC and CAC Payback

Formula:

[ CAC = \frac{S\&M}{NC} ]

Where:

• S&M = sales and marketing spend tied to acquisition
• NC = new customers acquired

Payback formula:

[ CAC\ Payback = \frac{CAC}{MGP} ]

Where:

• MGP = monthly gross profit per customer

Sample calculation:

If acquisition spend is $300,000 and new customers acquired are 15:

[ CAC = \frac{300,000}{15} = 20,000 ]

If monthly gross profit per customer is $4,000:

[ CAC\ Payback = \frac{20,000}{4,000} = 5\ months ]

Interpretation: Shorter payback usually indicates better sales efficiency.

Common mistakes:

• using revenue instead of gross profit
• including expansion revenue in new customer CAC
• ignoring long implementation costs

Limitations: CAC depends on accounting choices and time periods.

11.3 LTV and LTV/CAC

Simple formula:

[ LTV = Annual\ Gross\ Profit\ per\ Customer \times Expected\ Customer\ Life ]

[ LTV/CAC = \frac{LTV}{CAC} ]

Sample calculation:

• Annual revenue per customer = $40,000
• Gross margin = 75%
• Expected life = 5 years
• CAC = $30,000

Annual gross profit per customer:

[ 40,000 \times 75\% = 30,000 ]

LTV:

[ 30,000 \times 5 = 150,000 ]

LTV/CAC:

[ \frac{150,000}{30,000} = 5x ]

Interpretation: Higher LTV/CAC suggests stronger economic efficiency, but only if assumptions are realistic.

Common mistakes:

• overstating customer life
• ignoring service costs
• treating a modeled ratio as guaranteed reality

Limitations: LTV is highly assumption-sensitive.

11.4 NRR

Formula:

[ NRR = \frac{SRR + E – C – X}{SRR} \times 100 ]

Where:

• SRR = starting recurring revenue from a cohort
• E = expansion revenue
• C = contraction
• X = churn

Sample calculation:

• Starting recurring revenue = $1,000,000
• Expansion = $150,000
• Contraction = $50,000
• Churn = $100,000

[ NRR = \frac{1,000,000 + 150,000 – 50,000 – 100,000}{1,000,000} \times 100 ]

[ NRR = \frac{1,000,000}{1,000,000} \times 100 = 100\% ]

Interpretation:

• Above 100%: existing customers are expanding enough to offset losses
• 100%: stable
• Below 100%: customer base is shrinking without new acquisition

Common mistakes:

• mixing customer count retention with revenue retention
• including new-customer revenue in NRR
• ignoring cohort definition

Limitations: Best suited for recurring-revenue B2B models, especially software and services.

11.5 DSO

Formula:

[ DSO = \frac{AR}{CS} \times D ]

Where:

• AR = accounts receivable
• CS = credit sales
• D = number of days in period

Sample calculation:

• Receivables = $900,000
• Annual credit sales = $6,000,000
• Days = 365

[ DSO = \frac{900,000}{6,000,000} \times 365 = 54.75 ]

So DSO is about 55 days.

Interpretation: Higher DSO can indicate slower collections or customer bargaining power.

Common mistakes:

• using total sales instead of credit sales
• ignoring seasonality
• comparing firms with different billing cycles

Limitations: DSO alone does not reveal customer quality or bad-debt risk.

12. Algorithms / Analytical Patterns / Decision Logic

B2B is not defined by an algorithm, but analysts and operators use several decision frameworks around it.

Framework	What it is	Why it matters	When to use it	Limitations
Revenue-source classification	Classifying a company by who pays for the offering	Helps determine whether a firm is primarily B2B, B2C, or mixed	Industry mapping, investment analysis, market research	Mixed models can be hard to classify
TAM-SAM-SOM	Market-sizing framework	Helps estimate addressable market and realistic entry potential	Strategy, investor decks, sector research	Often overstated or built on weak assumptions
ICP and lead scoring	Ranking target accounts by fit and likelihood to buy	Improves sales efficiency in B2B pipelines	Sales planning, account-based marketing	Biased inputs can distort priorities
Procurement scoring matrix	Weighted evaluation of vendor proposals	Common in enterprise and public-sector buying	Tenders, RFPs, vendor selection	May overemphasize compliance over innovation
Cohort retention analysis	Tracking revenue behavior of customer groups