How To Fix MSGC_PLM_SE_MAT026 - Exactly-once request cannot be locked: &1 (error code: &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: MSGC_PLM_SE_MAT -

• Message number: 026

• Message text: Exactly-once request cannot be locked: &1 (error code: &2)

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MSGC_PLM_SE_MAT026 - Exactly-once request cannot be locked: &1 (error code: &2) ?

  The SAP error message MSGC_PLM_SE_MAT026 indicates that there is an issue with locking a request in the system. The message states that an "exactly-once request cannot be locked," which typically occurs in scenarios where a request is being processed, but the system is unable to acquire the necessary lock on the request due to various reasons.
  
  Cause:
  
  Concurrency Issues: The request might be locked by another process or user. This can happen if multiple users or processes are trying to access or modify the same request simultaneously.
  System Configuration: There may be configuration settings in the SAP system that affect how locks are managed.
  Database Locking: The underlying database may have locks that prevent the request from being processed.
  Long-running Transactions: If a transaction is taking too long to complete, it may hold onto locks longer than expected, causing other requests to fail.
  
  
  Solution:
  
  Check Lock Entries: Use transaction code SM12 to check for existing lock entries.