How To Fix 26455 - This change is not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: 26 - Dokumentenverwaltung

• Message number: 455

• Message text: This change is not allowed

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message 26455 - This change is not allowed ?

  The SAP error message 26455, which states "This change is not allowed," typically occurs in various contexts within the SAP system, often related to attempts to modify data or settings that are restricted due to system configurations, authorizations, or business rules.
  Causes:
  
  Authorization Issues: The user may not have the necessary permissions to make the changes they are attempting.
  System Configuration: Certain settings in the system may be configured to prevent changes to specific data or objects.
  Business Rules: There may be business logic in place that restricts changes to certain records or fields based on their status or other criteria.
  Locked Objects: The object or record you are trying to change may be locked by another user or process.
  Data Integrity Constraints: The system may have constraints in place to maintain data integrity, preventing changes that could lead to inconsistencies.
  
  Solutions:
  
  Check Authorizations: Ensure that the user has the necessary authorizations to perform the action. This may involve checking roles and permissions in the user profile.
  Review Configuration Settings: Consult with your SAP Basis or configuration team to review the settings that may be preventing the change. This could involve checking transaction codes, customizing settings, or system parameters.
  Consult Business Rules: If applicable, review the business rules that may be in place. This may involve discussions with business process owners or functional consultants.
  Unlock Objects: If the object is locked, identify the user or process that has locked it and resolve the lock, if appropriate.
  Error Logs: Check the system logs (transaction SLG1) for more detailed error messages that may provide additional context for the issue.
  Contact Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP support or your internal IT support team for further assistance.
  
  Related Information:
  
  Transaction Codes: Depending on where the error occurs, you may be using specific transaction codes (e.g., MM01, ME22N, etc.) that have their own rules and configurations.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide guidance on similar issues.
  Documentation: Review SAP documentation related to the specific module or functionality you are working with, as it may provide insights into restrictions and configurations.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.