How To Fix NR631 - Interval already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: NR - Number ranges

• Message number: 631

• Message text: Interval already exists

What causes this issue?

When inserting an interval, its ready existence was determined.

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?

Enter another number range number. If the intervals are distinguished
by 'To' years, enter another 'To' year.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message NR631 - Interval already exists ?

  The SAP error message NR631 ("Interval already exists") typically occurs in the context of number range management. This error indicates that you are trying to create or modify a number range interval that overlaps with an existing interval in the same number range object.
  Cause:
  
  Overlapping Intervals: You are attempting to define a new interval that overlaps with an existing one. For example, if you have an existing interval from 1000 to 2000 and you try to create a new interval from 1500 to 2500, this will trigger the NR631 error.
  Incorrect Configuration: The number range object may have been incorrectly configured, leading to conflicts in the defined intervals.
  Multiple Users: If multiple users are trying to modify the same number range object simultaneously, it can lead to conflicts.
  
  Solution:
  
  Check Existing Intervals: Go to the number range object in transaction code SNRO (Number Range Objects) and check the existing intervals. Ensure that the new interval you are trying to create does not overlap with any existing intervals.
  Modify or Delete Conflicting Intervals: If you find overlapping intervals, you may need to modify or delete the conflicting intervals to create the new one successfully.
  Use Unique Intervals: When defining new intervals, ensure that they are unique and do not overlap with any existing intervals.
  Locking Mechanism: If multiple users are involved, ensure that proper locking mechanisms are in place to prevent simultaneous modifications that could lead to conflicts.
  Consult Documentation: Review the documentation for the specific number range object you are working with to understand its configuration and constraints.
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: To manage number range objects.
  SNUM: To manage number ranges directly.
  
  
  Number Range Object: Each number range object has specific settings and intervals that define how numbers are generated and managed.
  SAP Notes: Check SAP Notes for any known issues or updates related to number range management that might provide additional insights or solutions.
  
  If the problem persists after following these steps, consider reaching out to your SAP Basis or technical support team for further assistance.