How To Fix CX_MSR_LFE001 - Timeout while waiting for response (RFC callback) from &1 after &2 sec

SAP Error Message - Details

• Message type: E = Error

• Message class: CX_MSR_LFE - Messages in logistical follow-up execution

• Message number: 001

• Message text: Timeout while waiting for response (RFC callback) from &1 after &2 sec

What causes this issue?

An asynchronous remote function call (RFC) with callback routines has
been executed.
Function module &V1& was called with "STARTING NEW TASK" and
"PERFORMING...ON END OF TASK".
Program execution was interrupted until a callback routine of the
previous function that was called asynchronously was executed.
After &V2& seconds of waiting for a response from the called function, a
timeout occurred.
With specification of the addition UP TO in WAIT statement, the maximum
time was exceeded.

System Response

Logisitcal follow-up execution (LFE) of the current item was not
successful.

How to fix this error?

Check whether creation of follow-up documents is still running in the
background.
LFE or <DS:DE.MSR_PROCESS_ID>MSR_ID</> &V3& has to run again.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CX_MSR_LFE001 - Timeout while waiting for response (RFC callback) from &1 after &2 sec ?

  The SAP error message CX_MSR_LFE001 indicates a timeout issue while waiting for a response from an RFC (Remote Function Call) callback. This typically occurs in scenarios where a system is trying to communicate with another system or service, and the response is not received within the expected time frame.
  Cause:
  
  Network Issues: There may be network latency or connectivity problems between the SAP system and the external system it is trying to communicate with.
  Performance Issues: The external system may be experiencing performance issues, causing it to respond slowly or not at all.
  Configuration Issues: Incorrect configuration of the RFC destination or the callback settings can lead to timeouts.
  Resource Limitations: The SAP system or the external system may be under heavy load, leading to delays in processing requests.
  Long-Running Processes: If the callback involves a long-running process, it may exceed the timeout threshold.
  
  Solution:
  
  Check Network Connectivity: Ensure that there are no network issues between the SAP system and the external system. You can use tools like ping or traceroute to diagnose connectivity problems.
  Increase Timeout Settings: If the external system is known to take longer to respond, consider increasing the timeout settings in the RFC configuration. This can often be done in the transaction SM59 for RFC destinations.
  Monitor Performance: Check the performance of both the SAP system and the external system. Look for any bottlenecks or resource limitations that may be causing delays.
  Review Logs: Check the application logs in both the SAP system and the external system for any error messages or warnings that could provide more context about the timeout.
  Optimize Processes: If the callback involves a long-running process, consider optimizing the process to reduce execution time.
  Test RFC Connection: Use the SM59 transaction to test the RFC connection to ensure it is working correctly and that the external system is reachable.
  
  Related Information:
  
  RFC Configuration: The configuration of RFC destinations can be found in transaction SM59. Ensure that the settings are correct and that the target system is reachable.
  SAP Notes: Check for any relevant SAP Notes that may address known issues related to RFC timeouts or performance problems.
  System Monitoring: Use tools like SAP Solution Manager or transaction ST22 to monitor system performance and analyze dumps that may provide insights into the issue.
  Timeout Parameters: The timeout parameters can often be adjusted in the system profile parameters (e.g., rdisp/rfc_timeout).
  
  By following these steps, you should be able to diagnose and resolve the timeout issue associated with the CX_MSR_LFE001 error message.