How To Fix RSM684 - The last delta update contained errors. No new delta update possible.

SAP Error Message - Details

• Message type: E = Error

• Message class: RSM -

• Message number: 684

• Message text: The last delta update contained errors. No new delta update possible.

How to fix this error?

As the last delta request was not correctly updated, renewed delta
loading is not possible until after a correct update.
If you wish to reload the data of the last request you must attempt a
renewed request of these data packet (with a subsequent request of the
data packet in the Scheduler).
Using the <ls>QM-Action</> pushbutton in the monitor, you can set the
last delta request to 'successful'. A renewed delta request is then
possible.
However, in this way some applications lose their old, already
delivered data, meaning that it can no longer be loaded again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSM684 - The last delta update contained errors. No new delta update possible. ?

  The SAP error message RSM684 indicates that there was an issue with the last delta update in the SAP system, which prevents any new delta updates from being processed. This error typically occurs in the context of SAP BW (Business Warehouse) or SAP Data Warehousing scenarios where delta data extraction is used.
  Causes:
  
  Data Transfer Issues: There may have been a failure during the data transfer process, such as network issues or problems with the source system.
  Data Consistency Errors: The data being transferred may have inconsistencies or errors that prevent successful processing.
  Delta Queue Issues: The delta queue may be in an inconsistent state, possibly due to previous errors or incomplete processing.
  Extraction Logic Errors: There may be issues in the extraction logic or transformation rules that lead to errors during the delta update.
  Locking Issues: Locks on the data or objects involved in the delta update can also lead to this error.
  
  Solutions:
  
  Check Delta Queue: Use transaction RSA7 to monitor the delta queue. If there are entries in the delta queue that are not processed, you may need to analyze and resolve them.
  Reprocess Delta Queue: If the delta queue is stuck, you can try to reprocess it. This can be done by selecting the entries and choosing the option to reprocess.
  Check Source System: Ensure that the source system is functioning correctly and that there are no issues with the data being extracted.
  Analyze Error Logs: Check the error logs in transaction RSMO or RSMO for more detailed information about the errors that occurred during the last delta update.
  Reset Delta: If necessary, you may need to reset the delta process. This can involve resetting the delta queue and reinitializing the delta extraction process.
  Consult SAP Notes: Look for relevant SAP Notes that may address specific issues related to your version of SAP BW or the data source you are using.
  
  Related Information:
  
  Transaction Codes:
  
  RSA7: Monitor delta queue.
  RSMO: Monitor data transfer processes.
  RSC3: Check the status of the delta process.
  
  
  SAP Notes: Search for SAP Notes related to RSM684 for specific fixes or recommendations.
  Documentation: Review SAP documentation on delta updates and data extraction processes for best practices and troubleshooting steps.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis or BW support team for further investigation and resolution.