How To Fix ATO_CUSTOMER173 - Activity is locked for collection &1 (&2).

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 173

• Message text: Activity is locked for collection &1 (&2).

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ATO_CUSTOMER173 - Activity is locked for collection &1 (&2). ?

  The SAP error message ATO_CUSTOMER173, which states "Activity is locked for collection &1 (&2)," typically indicates that a specific activity or transaction is currently locked for processing in the system. This can happen for various reasons, such as:
  Causes:
  
  Concurrent Processing: Another user or process is currently working on the same activity, leading to a lock.
  Incomplete Transactions: A previous transaction related to the activity was not completed, leaving it in a locked state.
  System Configuration: Certain configurations or settings in the system may lead to activities being locked under specific conditions.
  User Authorizations: The user may not have the necessary authorizations to unlock or access the activity.
  
  Solutions:
  
  Check for Active Sessions: Verify if another user is currently processing the same activity. If so, you may need to wait until they complete their work.
  Transaction Monitoring: Use transaction codes like SM12 (to view and manage locks) to identify and possibly release the lock if it is safe to do so.
  Complete Pending Transactions: Ensure that any previous transactions related to the activity are completed. This may involve checking for any incomplete documents or processes.
  User Authorization: Confirm that the user has the necessary permissions to access the activity. If not, contact your system administrator to adjust the authorizations.
  System Restart: In some cases, a system restart may be required to clear any lingering locks, especially if they are due to system errors.
  
  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 for dumps).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review SAP documentation or help files for more detailed information on activity locking and management.
  
  If the issue persists after trying the above solutions, it may be necessary to consult with your SAP Basis team or technical support for further investigation.