How To Fix CCMM191 - Structure gap (&1 &2 &3) has been dismantled by another user

CCMM191 - Overview

• Message type: E = Error

• Message class: CCMM - Message Class for A&D CCM

• Message number: 191

• Message text: Structure gap (&1 &2 &3) has been dismantled by another user

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CCMM191 - Structure gap (&1 &2 &3) has been dismantled by another user ?

  The SAP error message CCMM191 indicates that a structure gap (which is a reserved space in a structure for future use) has been dismantled or modified by another user while you were trying to access or modify it. This typically occurs in the context of SAP's Capacity Planning or Production Planning modules, where multiple users may be working on the same data simultaneously.
  
  Cause:
  
  Concurrent Access: The primary cause of this error is that two or more users are trying to modify the same structure or data at the same time. When one user dismantles or changes the structure, it can lead to inconsistencies for other users who are trying to access it.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a user has locked a structure and another user tries to access it, the second user may receive this error if the first user modifies the structure.
  
  
  Solution:
  
  Refresh the