How To Fix /ISDFPS/NR028 - Numbers have already been assigned in interval &1 - changes not possible

/ISDFPS/NR028 - Overview

• Message type: E = Error

• Message class: /ISDFPS/NR -

• Message number: 028

• Message text: Numbers have already been assigned in interval &1 - changes not possible

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 /ISDFPS/NR028 - Numbers have already been assigned in interval &1 - changes not possible ?

  The SAP error message /ISDFPS/NR028 Numbers have already been assigned in interval &1 - changes not possible typically occurs in the context of number range management within SAP, particularly when dealing with number ranges for documents or records in the system. This error indicates that the number range interval specified (denoted by &1) has already been used to assign numbers, and therefore, changes to that interval are not allowed.
  
  Cause:
  
  Number Range Already Used: The primary cause of this error is that the number range interval you are trying to modify has already been utilized to assign numbers to documents or records. Once numbers are assigned from a range, the system locks that range for further modifications to prevent inconsistencies.
  Incorrect Configuration: There may be an attempt to change the configuration of a number range that is currently in use, which is not permitted.
  
  
  Solution:
  
  Check Number Range Usage: Verify if the number range interval