How To Fix CB016 - The selected process message (cat. &) is blocked by another user

CB016 - Overview

• Message type: E = Error

• Message class: CB - PP-PI-PMA: Dialog Messages for Process Management

• Message number: 016

• Message text: The selected process message (cat. &) is blocked by another user

What causes this issue?

You cannot maintain, send or delete the selected process
message (category &V1&) as it is currently processed by another user.

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?

Carry out the desired function at a later time.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CB016 - The selected process message (cat. &) is blocked by another user ?

  The SAP error message CB016 indicates that a selected process message (category &) is blocked by another user. This typically occurs in the context of process order management or production planning, where multiple users may be trying to access or modify the same process message simultaneously.
  
  Cause:
  
  Concurrent Access: Another user is currently processing or editing the same process message, which locks it for other users.
  Lock Entries: SAP uses lock entries to prevent data inconsistencies. If a user has an active session on a process message, it will be locked for others.
  Long Running Transactions: If a user has a long-running transaction, it may hold the lock for an extended period, causing other users to encounter this error.
  System Configuration: Certain configurations in the system may lead to more frequent locking issues, especially in high-traffic environments.
  
  
  Solution:
  
  Wait and Retry: The simplest solution is to wait for the other user to finish their transaction and then