How To Fix UPC090 - Data requested in planning area &1 is locked by user &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UPC - Planning: General Error Messages

• Message number: 090

• Message text: Data requested in planning area &1 is locked by user &2

What causes this issue?

If transaction data is requested in change mode, this data must be
exclusively locked for a user. The data currently requested for
planning area '&V1&' (planning level '&V3&', planning package '&V4&')
is already locked by user '&V2&'.
Background Information
The system locks the data that is described by the selection of the
planning package. However, the following rules apply in addition for
manual planning:
The selection comes from the planning layout for data columns and
individually defined rows in the planning layout.
In the remaining cases the selection comes from the planning package.
If variables are contained in the planning level or planning layout,
these are replaced for the determination of the selection.
Note that in Customizing, for variables of the type hierarchy node,
attribute, and authorization, the replacement of variables can lead to
many individual characteristic values:
For hierarchy nodes the system determines all characteristic values for
the hierarchy defining characteristic, which are contained in the
subtree and puts these in the selection.
For attribute values the system reads the master data for the attribute
and puts this in the selection.
For authorizations, the authorization object is read and the related
master data is read with the selection options of the authorization
object. The master data is then transferred into the selection.
Very complex selections can be formed in this way, which lead to a high
load on the lock server.

System Response

The requested data cannot be changed as long as another user has an
exclusive lock on this data.

How to fix this error?

Contact user '&V2&' if necessary, so that this user can leave the
planning transaction and thus release the locks.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message UPC090 - Data requested in planning area &1 is locked by user &2 ?

  The SAP error message UPC090 indicates that the data you are trying to access in a specific planning area is currently locked by another user. This typically occurs in environments where multiple users are working with the same planning data, such as in SAP Integrated Business Planning (IBP) or SAP Advanced Planning and Optimization (APO).
  Cause:
  The error occurs when:
  
  A user has locked the planning area for data entry or processing, preventing other users from accessing or modifying that data simultaneously.
  The lock may be due to a user actively working in the planning area, or it could be a leftover lock from a previous session that did not release properly.
  
  Solution:
  To resolve the UPC090 error, you can take the following steps:
  
  
  Identify the Locking User: Check who is currently locking the planning area. You can do this by using transaction codes like SM12 (for lock entries) in SAP GUI to see which user has the lock.
  
  
  Wait for Release: If the locking user is actively working, you may need to wait until they finish their work and release the lock.
  
  
  Contact the Locking User: If possible, reach out to the user who has the lock to see if they can release it or if they are done with their task.
  
  
  Force Release the Lock: If the lock is stale (e.g., the user has logged off without releasing the lock), you may need to manually delete the lock entry. This should be done with caution and typically requires administrative privileges. Use transaction SM12 to delete the lock entry.
  
  
  Check for System Issues: If locks are persisting frequently, it may indicate a system issue or a need for better user training on how to properly release locks.
  
  
  Review Configuration: In some cases, reviewing the configuration of the planning area and the locking mechanisms in place may help prevent future occurrences.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with transaction codes like SM12 (to view and manage locks) and SM21 (to check system logs for errors).
  User Training: Ensure that users are trained on how to properly manage their sessions and release locks when they are done.
  System Performance: Regularly monitor system performance and user activity to identify patterns that may lead to frequent locking issues.
  SAP Notes: Check SAP Notes for any known issues or patches related to locking mechanisms in your specific version of SAP.
  
  By following these steps, you should be able to resolve the UPC090 error and minimize its occurrence in the future.