How To Fix RSCRM128 - Error when determining the external ID

SAP Error Message - Details

• Message type: E = Error

• Message class: RSCRM - RSCRM: Messages

• Message number: 128

• Message text: Error when determining the external ID

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 RSCRM128 - Error when determining the external ID ?

  The SAP error message RSCRM128 typically occurs in the context of SAP systems when there is an issue with determining the external ID for a specific object, often related to the integration between SAP systems and external systems (like CRM or other third-party applications). This error can arise due to various reasons, including configuration issues, data inconsistencies, or problems with the communication between systems.
  Causes of RSCRM128 Error
  
  
  Missing or Incorrect Configuration: The integration settings between SAP and the external system may not be correctly configured. This includes settings in the CRM system or middleware.
  
  
  Data Inconsistencies: The data in the SAP system may not match the expected format or may be incomplete, leading to issues when trying to determine the external ID.
  
  
  Authorization Issues: The user or system trying to access the external ID may not have the necessary permissions to retrieve or create the ID.
  
  
  Network or Connectivity Issues: If the external system is not reachable due to network issues, the SAP system may fail to retrieve the external ID.
  
  
  System Bugs or Limitations: There may be bugs in the SAP system or limitations in the version being used that affect the determination of external IDs.
  
  
  Solutions to RSCRM128 Error
  
  
  Check Configuration: Review the configuration settings for the integration between SAP and the external system. Ensure that all necessary parameters are correctly set.
  
  
  Validate Data: Check the data in the SAP system for completeness and correctness. Ensure that all required fields are populated and that the data adheres to the expected formats.
  
  
  Review Authorizations: Ensure that the user or system has the necessary authorizations to access the external ID. This may involve checking roles and permissions in the SAP system.
  
  
  Test Connectivity: Verify that the external system is reachable from the SAP system. This can involve checking network settings, firewalls, and any middleware that may be in use.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or patches that may address this specific error. There may be known issues or fixes available.
  
  
  Debugging: If you have access to the development environment, consider debugging the process to identify where the error occurs. This can provide insights into the root cause.
  
  
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. They may have additional insights or solutions based on the specific context of your system.
  
  
  Related Information
  
  SAP Documentation: Refer to the official SAP documentation for details on integration scenarios and external ID management.
  Community Forums: Check SAP Community forums or other user groups for discussions related to RSCRM128, as other users may have encountered and resolved similar issues.
  System Logs: Review system logs (transaction SLG1) for additional error messages or warnings that may provide more context about the issue.
  
  By following these steps, you should be able to diagnose and resolve the RSCRM128 error in your SAP system.