On paper there are systems. In practice, the company runs on the people who remember which spreadsheet, which join, and which exception lives where.
Accounting books settlement date. Ops books ship date. Retail books purchase date. Returns nullify some, not others.
One purchase can appear as four transactions — order, settlement, return, exchange — manually reconciled with tribal logic.
NBA/NFL classify a store pickup as e-commerce. MLB classifies it as physical retail. Duplicate accounting follows.
