If the process generates an interaction ID and uses it to create the record, the API returns the interaction ID. If the process starts a workflow instead of directly saving the record to the database, the API returns the process ID which is the ID of the workflow process

The following example shows a response header with an interaction ID and a process ID:

BES-interactionId: 72200000242000
BES-processId: 15948

The response body contains the record with the generated rowIds.