For Flinks Connect, no timeout is put in place actively from the interface. What can happen is when a Security Question is prompted and not answered in a mannerly time by the end-user, the financial institution can reset the connection and timeout in their end. In this case an error will be prompted after the answer is sent, and the enduser will need to start a new session.
API (live mode)
Once you receive an Authorize endpoint response with 200, you have 8 minutes to use the requestID to call any other endpoint, otherwise the RequestId will become expired.
Other Banking Services endpoints
After the request is made, you should receive an answer in 210 seconds. After that, you will receive the code 202 OPERATION_DISPATCHED and you must continue your flow in asynchronous mode.