SAP Cloud Platform Open Connectors

QuickBooks Online: Why do I get "INTERNAL_SERVER_ERROR" when syncing customer invoices?

The below error might be seen when trying to sync customer invoices:

java.lang.RuntimeException: {"message":"getCustomerById failure","endpoint":"","headers":{"Content-Type":["application/json"],"Authorization":["Elementxxxxxxxxxxxxxxxxx=, User=xxxxxxxxxxxxxxx"]},"responseStatusCode":"INTERNAL_SERVER_ERROR","responseBody":"{\"requestId\":\"xxxxxxxxxxxxxx\",\"message\":\"Unknown internal error\"}"}

QuickBooks Online only allows one connection per user ID. If you create one instance, and a second instance with the same user ID, then the second instance will revoke access to the first one.

QuickBooks online has a sync token attached to each ID. When you perform a GET /invoices call, the ID will appear as: 1234|3. This translates to <id>|<sync token>

The sync token helps manage concurrent requests. Only the request with the most recent sync token will succeed. When you PATCH /invoices, send the ID with the most recent sync token.