How To Fix RS_B4HPREP037 - Read tasks are not complete yet. Task list cannot continue.

SAP Error Message - Details

• Message type: E = Error

• Message class: RS_B4HPREP - B4H Transfer Preparation Messages

• Message number: 037

• Message text: Read tasks are not complete yet. Task list cannot continue.

What causes this issue?

In the BW/4 HANA Conversion Cockpit, make sure you have successfully
finished the Read tasks of the participating BW objects.

System Response

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

How to fix this error?

Please execute the <ZK>Confirm Data Selection Is Complete in the Sender
System (phase: Migration)</> activity in BW/4 Conversion cockpit in
order to confirm that Read tasks are complete for the participating BW
objects.
From the BW/4 HANA Conversion Cockpit, you will be navigated to the open
task list run, and you can continue with the task list.

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 RS_B4HPREP037 - Read tasks are not complete yet. Task list cannot continue. ?

  The SAP error message RS_B4HPREP037 indicates that the read tasks in a background job or process are not yet complete, which prevents the task list from continuing. This error typically occurs in the context of data extraction or data processing jobs, particularly in the SAP BW (Business Warehouse) environment.
  Cause:
  
  
  Incomplete Read Tasks: The error suggests that the system is waiting for certain read tasks to finish before it can proceed. This can happen if:
  
  The read tasks are still running.
  There are performance issues causing delays in task completion.
  There are dependencies on other processes that have not yet completed.
  
  
  
  Locking Issues: Sometimes, database locks or contention can prevent tasks from completing in a timely manner.
  
  
  Configuration Issues: Incorrect configuration of the data extraction process or the data flow can lead to this error.
  
  
  Solution:
  
  
  Check Task Status: 
  
  Go to the transaction code SM37 to check the status of the background jobs. Look for any jobs that are still running or have failed.
  Ensure that all prerequisite tasks are completed.
  
  
  
  Monitor Performance: 
  
  Use transaction ST22 to check for dumps that might indicate performance issues.
  Use transaction SM66 to monitor the system's performance and see if there are any long-running processes.
  
  
  
  Review Logs: 
  
  Check the logs for the specific data load or extraction process to identify any errors or warnings that might provide more context.
  
  
  
  Adjust Timeouts: If the read tasks are taking too long, consider adjusting the timeout settings for the job or optimizing the data extraction process.
  
  
  Restart the Job: If the job is stuck, you may need to cancel it and restart it after ensuring that all dependencies are resolved.
  
  
  Check for Locks: 
  
  Use transaction SM12 to check for any locks that might be preventing the read tasks from completing. If you find locks that are no longer needed, you can release them.
  
  
  
  Consult Documentation: Review SAP notes and documentation related to the specific version of SAP BW you are using, as there may be known issues or patches available.
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that might address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Performance Tuning: Consider performance tuning for your BW system, including optimizing data models, indexes, and queries to reduce the time taken for read tasks.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.