APIs, payments, receipts and connected systems
Connect payments, receipts, CRMs, accounts, external APIs and synchronised data.
What this work involves
When orders, payments and reports live in separate tools, people become the integration layer. I design APIs, webhooks, payment and receipt flows, synchronisation and error control.
Who it suits
- Online businesses that need compliant payment and receipt flows
- Companies moving data between services by hand
- Products adding external services without fragile one-off links
Questions answered before delivery starts
- Which systems and data must connect?
- Which way does data move and how often?
- Which payment and fiscal requirements apply?
- How are failures reported and recovered?
How the work proceeds
Map data flows
State which data moves, where and when.
Define integration points
Review APIs, webhooks, formats, access and limits.
Implement
Connect systems with validation, logging and failure handling.
Verify
Run real flows including failures and retries.
Boundaries and working rules
- Payment and receipt work follows applicable requirements
- Failures remain visible through logs and alerts
- Format changes account for backwards compatibility