Five Businesses, One Platform

One of India's largest retail groups ran several B2B businesses at once: cash-and-carry wholesale, distribution of its own consumer brands, fashion B2B and partner retail. Each was large on its own, and each served a different buyer.

B2B commerce is harder than B2C in every dimension that matters. A wholesaler buys on credit, not on a card. Prices are negotiated per buyer, per contract and per volume band. Catalogues are restricted by region, channel and agreement. A single order can carry approvals, minimum quantities, tax rules and split deliveries.

The choice in front of the group: build one product per business and pay for several codebases forever, or force every business onto one rigid model and break the rules that made each of them profitable. Neither was acceptable.

I treated the problem as platform design, not feature delivery, and separated what every business shares from what makes each one different.

• A shared core, built once. Buyer accounts and hierarchies, catalogue visibility, contract and tiered pricing, ordering, invoicing and fulfilment, used by every business.

• A configurable edge, never forked. Each business's real rules, such as credit limits and terms, assortment, price lists, order minimums and approval flows, held as configuration rather than custom code, so a new rule never creates a new product.

• Money designed in from the start. Credit, payment terms, collections and settlement treated as product features rather than finance afterthoughts, because in B2B the credit decision is the sale.

• Sequenced launches. One business at a time, so each launch hardened the platform for the next and every lesson was paid for only once.

• One roadmap, many owners. Priorities agreed with every business owner before the build began, and one decision forum for anything that touched the shared core.

More than five multi-million-dollar B2B and B2C products now run on shared foundations, serving every buyer type in the chain: brands, distributors, retailers and wholesalers.

Every new business line starts from a working base rather than a blank page, and every improvement to the core reaches all of them at once.

The lasting lesson: platforms are won at the boundary between shared and specific. Draw it well and scale becomes cheap. Draw it badly and every new customer becomes a new product.