How To Fix M7256 - Report may only be active once for each client

M7256 - Overview

• Message type: E = Error

• Message class: M7 - Inventory Management and Physical Inventory

• Message number: 256

• Message text: Report may only be active once for each client

What causes this issue?

You attempted to start the report <DS:RE.RM07MWBU>RM07MWBU</> although
it is already running in this client. You can only start the report
once for each client.

System Response

The report will not be started again.

How to fix this error?

Switch to the session in which the report is running. You can exit it
there and start it again if required.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

M7256 - Details

• The SAP error message M7256, which states "Report may only be active once for each client," typically occurs when there is an attempt to execute a report that is already running or has been executed in the same client session. This is a common issue in SAP environments where multiple users or processes may try to run the same report simultaneously.
  
  Cause:
  
  Concurrent Execution: The report is already being executed by another user or process in the same client.
  Session Lock: The report may have a session lock that prevents it from being executed again until the first execution is completed.
  Background Job: If the report is running as a background job, it may not allow another instance to start until the current job is finished.
  
  
  Solution:
  
  Check Running Instances: Verify if the report is currently running. You can do this by checking the transaction code SM37 (Job Monitoring) to see if there are any active