How To Fix FITP405 - System error: No data reception after successful API transaction

SAP Error Message - Details

• Message type: E = Error

• Message class: FITP -

• Message number: 405

• Message text: System error: No data reception after successful API transaction

What causes this issue?

After calling a function in the connected reservation system, the API
server gave back the return value for a successful call, but the
relevant data was not returned to the SAP System; the return structures
are not filled.

How to fix this error?

Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FITP405 - System error: No data reception after successful API transaction ?

  The SAP error message FITP405, which states "System error: No data reception after successful API transaction," typically indicates that there was an issue with the communication between the SAP system and an external system or service after a successful API transaction. This error can occur in various contexts, such as during data exchange with third-party applications or services.
  Causes:
  
  Network Issues: There may be network connectivity problems that prevent the SAP system from receiving data from the external system.
  Timeouts: The API call may have timed out, leading to a situation where the SAP system does not receive the expected response.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external system can lead to communication failures.
  Data Format Issues: The data being sent back may not be in the expected format, causing the SAP system to reject it.
  Service Unavailability: The external service may be down or experiencing issues, leading to a lack of data reception.
  Authorization Issues: There may be authorization problems that prevent the SAP system from accessing the data.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP system and the external service. You can use tools like ping or traceroute to diagnose connectivity problems.
  Review API Logs: Check the logs of both the SAP system and the external service to identify any errors or warnings that may provide more context about the issue.
  Increase Timeout Settings: If timeouts are suspected, consider increasing the timeout settings for the API calls in the SAP system.
  Validate Configuration: Review the configuration settings for the API integration in both the SAP system and the external system to ensure they are correct.
  Test External Service: Verify that the external service is operational and can respond to requests. You can use tools like Postman or curl to test the API independently.
  Check Data Formats: Ensure that the data being sent and received adheres to the expected formats and structures.
  Review Authorization Settings: Make sure that the necessary authorizations are in place for the SAP system to access the external service.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the FITP405 error. SAP frequently updates its knowledge base with solutions for common problems.
  API Documentation: Review the API documentation for the external service to ensure that you are following the correct protocols and data formats.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or the support team for the external service to further diagnose and resolve the issue.