How To Fix USMD1B019 - Data model &1 for activation postprocessing locked by user &2

USMD1B019 - Overview

• Message type: E = Error

• Message class: USMD1B - Meldungen: MDF Anschluss

• Message number: 019

• Message text: Data model &1 for activation postprocessing locked by user &2

Self-Explanatory Message

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USMD1B019 - Details

• The SAP error message USMD1B019 indicates that the data model activation postprocessing is locked by a specific user. This typically occurs in the context of SAP Master Data Governance (MDG) when a data model is being activated or modified, and another user has locked the process, preventing further changes or activations.
  
  Cause:
  
  User Lock: The error is primarily caused by another user (user &2) having an active lock on the data model (indicated by &1). This can happen if the user is currently working on the data model or if a previous session did not release the lock properly.
  System Error: Sometimes, system errors or crashes can leave locks in place unintentionally.
  Long-running Processes: If a process is taking too long to complete, it may hold the lock longer than expected.
  
  
  Solution:
  
  Identify the Locking User: Check which user is holding the lock. You can do this by using transaction SM12 (Display and Delete Locks) in