Changing who you integrate with.
WHY IT HAPPENS
Price Reliability Missing capability A provider closing or changing terms
WHAT MAKES IT POSSIBLE
Having isolated the provider behind your own interface.
WHY THAT DECISION PAYS OFF HERE
Without it, the provider's shapes are spread through your application.
WHAT TO ESTABLISH FIRST
Whether the new provider covers everything you use.
HOW
List what you actually call, from logs rather than memory.
WHY FROM LOGS
Actual usage differs from what anyone remembers.
WHAT TO PLAN FOR
Data held by the old provider Identifiers that will change Webhooks needing reconfiguration Credentials in several places
WHAT TO DO ABOUT IDENTIFIERS
Store both, during the transition.
WHAT APPROACH REDUCES RISK
Running both, sending a small proportion to the new one.
WHAT TO COMPARE
Results, for the same operations.
WHAT TO INCREASE GRADUALLY
The proportion.
WHAT TO KEEP
The ability to switch back immediately.
HOW LONG TO KEEP THE OLD PROVIDER
Until you are certain, and until historical data is retrieved.
WHAT TO RETRIEVE BEFORE CLOSING AN ACCOUNT
Everything you may need later.
WHY
Access ends with the account.
