How To Fix RTC_COMM123 - No Delta Data

SAP Error Message - Details

• Message type: E = Error

• Message class: RTC_COMM -

• Message number: 123

• Message text: No Delta Data

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RTC_COMM123 - No Delta Data ?

  The SAP error message RTC_COMM123 "No Delta Data" typically occurs in the context of SAP's Real-Time Communication (RTC) or when dealing with delta data extraction in SAP systems, particularly in scenarios involving SAP BW (Business Warehouse) or SAP S/4HANA.
  Cause:
  The "No Delta Data" error indicates that the system is unable to find any delta records to process. This can happen for several reasons:
  
  No New Data: There may simply be no new data that has been added or changed since the last delta extraction.
  Delta Queue Issues: The delta queue may not have been updated correctly, or there may be issues with the delta mechanism.
  Data Transfer Issues: There could be problems with the data transfer process, such as network issues or configuration problems.
  Incorrect Configuration: The delta extraction might not be configured correctly, leading to the system not recognizing available delta data.
  Data Locking: If the data is locked by another process, it may not be available for delta extraction.
  
  Solution:
  To resolve the RTC_COMM123 error, you can take the following steps:
  
  Check for New Data: Verify if there are any new or changed records in the source system that should be available for delta extraction.
  Review Delta Queue: Check the delta queue for any issues. You can use transaction codes like RSA7 (for delta queue monitoring) to see if there are records waiting to be processed.
  Reinitialize Delta: If the delta mechanism is not functioning correctly, you may need to reinitialize the delta process. This involves setting up the delta extraction again, which may require deleting the existing delta setup and reconfiguring it.
  Check Configuration: Ensure that the delta extraction is configured correctly in the source system and that the necessary settings are in place.
  Monitor Data Locks: Investigate if there are any locks on the data that might be preventing the delta extraction. You can use transaction codes like SM12 to check for locks.
  Check Logs: Review the logs for any additional error messages or warnings that might provide more context about the issue.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA7, SM12, and SLG1 (for application logs) to monitor and troubleshoot delta extraction issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to the RTC_COMM123 error. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Review SAP documentation related to delta data extraction and real-time communication for best practices and troubleshooting steps.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or BW team for further assistance, as they may have more insights into the specific configuration and setup of your SAP environment.