How To Fix CRM_IU_IC_SWTMSG002 - Error during remote function call &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_IU_IC_SWTMSG - Message class for switch message

• Message number: 002

• Message text: Error during remote function call &1

What causes this issue?

Error during remote function call &V1&
An error (communication error) occurred while using a remote call to
call a function module in the switch message area.

System Response

The system cannot execute the action.

How to fix this error?

This is probably a temporary disruption. Restart your application later.

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_IU_IC_SWTMSG002 - Error during remote function call &1 ?

  The SAP error message CRM_IU_IC_SWTMSG002 typically indicates an issue during a remote function call (RFC) in the context of SAP CRM (Customer Relationship Management) and its integration with other systems or components. This error can arise due to various reasons, and understanding the cause is crucial for finding an appropriate solution.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  Authorization Issues: The user or system making the RFC call may not have the necessary authorizations to execute the function module.
  Configuration Errors: Incorrect configuration settings in the RFC destination or in the related systems can lead to this error.
  System Performance: If the target system is under heavy load or experiencing performance issues, it may not respond in a timely manner.
  Data Issues: The data being passed in the RFC call may be invalid or not conforming to the expected format, leading to processing errors.
  Function Module Issues: The function module being called may have bugs or may not be properly implemented.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  Review Authorizations: Verify that the user or system has the necessary authorizations to perform the RFC call. Check the roles and profiles assigned to the user.
  Validate RFC Configuration: Check the RFC destination configuration in transaction SM59. Ensure that the settings are correct and that the connection test is successful.
  Monitor System Performance: Use transaction SM50 or SM66 to monitor the performance of the target system. If it is overloaded, consider optimizing the workload or scheduling the RFC calls during off-peak hours.
  Inspect Data Passed: Review the data being sent in the RFC call. Ensure that it meets the expected format and constraints defined in the function module.
  Debug the Function Module: If you have access, debug the function module being called to identify any issues in its implementation.
  
  Related Information:
  
  Transaction Codes: Use SM21 to check the system log for any related error messages, and ST22 to check for dumps that may provide more context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address known issues related to this error message.
  Documentation: Review the documentation for the specific function module being called to understand its parameters and expected behavior.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support or consult with a technical expert who can provide deeper insights into the specific environment and configuration.