What “building your own” really means
An internal build must cover account access, eligibility, merchant data, search and discovery, ordering, payment or float logic, fulfilment, voucher storage, transaction history, tracking, reporting and support journeys. Each of those areas also creates error states that need to be designed and tested.
The organisation then owns security, accessibility, analytics, release management and customer-facing maintenance. Building the first usable version is therefore only the start of the cost.

