How To Fix MA790 - You cannot perform activity & together with other activities

SAP Error Message - Details

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 790

• Message text: You cannot perform activity & together with other activities

What causes this issue?

The transfer to Demand Management and the transfer to CO-PA cannot be
executed together with other activities.

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?

Create a new activity which only consists of one step.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MA790 - You cannot perform activity & together with other activities ?

  The SAP error message MA790, which states "You cannot perform activity & together with other activities," typically occurs in the context of production planning or material management when there is an attempt to execute certain activities that are not allowed to be performed simultaneously.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Conflicting Activities: The system has detected that the activity you are trying to perform is incompatible with other activities that are currently being processed. For example, you might be trying to post goods movements while another transaction is being processed.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If one user is performing an activity that locks certain data, another user trying to perform a conflicting activity will encounter this error.
  Configuration Issues: There may be configuration settings in the system that restrict certain activities from being performed together.
  
  Solution:
  To resolve the MA790 error, you can take the following steps:
  
  
  Check for Active Sessions: Ensure that no other users or sessions are currently processing activities that conflict with the one you are trying to perform. You can use transaction code SM12 to check for locks and see if another user is holding a lock on the relevant data.
  
  
  Review Activity Sequence: If you are performing a sequence of activities, review the order in which they are being executed. Make sure that the activities you are trying to perform are allowed to be executed together.
  
  
  Consult Documentation: Check the SAP documentation or help files related to the specific transaction or activity you are trying to perform. There may be specific guidelines or restrictions mentioned.
  
  
  Configuration Review: If you suspect that the issue is related to configuration, consult with your SAP Basis or configuration team to review the settings related to the activities in question.
  
  
  Retry After Some Time: If the error is due to a temporary lock, waiting for a few moments and then retrying the operation may resolve the issue.
  
  
  Contact Support: If the issue persists and you cannot identify the cause, consider reaching out to your SAP support team or consulting SAP Notes for any known issues related to this error message.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM12 (to check locks), SM21 (to view system logs), and ST22 (to check dumps) for troubleshooting.
  SAP Notes: Search for SAP Notes related to error MA790 in the SAP Support Portal for any patches or updates that may address the issue.
  User Permissions: Ensure that the user has the necessary permissions to perform the activities in question, as permission issues can sometimes lead to unexpected errors.
  
  By following these steps, you should be able to identify the cause of the MA790 error and take appropriate action to resolve it.