How To Fix DMC_RT_MSG203 - System error occurs when calling function module in sender system

SAP Error Message - Details

• Message type: E = Error

• Message class: DMC_RT_MSG - DMC: Runtime Object Messages

• Message number: 203

• Message text: System error occurs when calling function module in sender system

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMC_RT_MSG203 - System error occurs when calling function module in sender system ?

  The SAP error message DMC_RT_MSG203 indicates that a system error occurred when calling a function module in the sender system. This error is typically related to issues in the Data Migration Cockpit (DMC) or during data transfer processes between systems.
  Causes:
  
  Function Module Issues: The function module being called may not exist, may be incorrectly implemented, or may have been modified in a way that causes it to fail.
  Authorization Issues: The user executing the data migration may not have the necessary authorizations to call the function module.
  Network Issues: There may be connectivity problems between the source and target systems.
  Configuration Issues: Incorrect configuration settings in the DMC or the source/target systems can lead to this error.
  Data Issues: The data being processed may contain invalid or unexpected values that cause the function module to fail.
  
  Solutions:
  
  Check Function Module: Verify that the function module exists in the sender system and is functioning correctly. You can do this by testing the function module directly in the SAP GUI.
  Review Authorizations: Ensure that the user has the necessary authorizations to execute the function module. You may need to check roles and profiles assigned to the user.
  Network Connectivity: Check the network connection between the systems. Ensure that there are no firewalls or network issues preventing communication.
  Configuration Review: Review the configuration settings in the Data Migration Cockpit and ensure that they are set up correctly for the data transfer.
  Data Validation: Validate the data being transferred to ensure it meets the expected format and constraints. Look for any anomalies or unexpected values.
  Check Logs: Review the application logs (transaction SLG1) for more detailed error messages that can provide additional context about the failure.
  SAP Notes: Search for relevant SAP Notes that may address this specific error or provide patches or updates that could resolve the issue.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SLG1 (Application Log) to check for detailed logs related to the error.
  SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error, including any logs and the context in which it occurred.
  Documentation: Review the official SAP documentation for the Data Migration Cockpit and related tools to ensure you are following best practices.
  
  By systematically addressing these areas, you should be able to identify and resolve the underlying cause of the DMC_RT_MSG203 error.