How To Fix CF891 - Number assignment: Numbers are in the critical area.

SAP Error Message - Details

• Message type: E = Error

• Message class: CF - PRT management messages

• Message number: 891

• Message text: Number assignment: Numbers are in the critical area.

What causes this issue?

The number range object &V1& sub-object &V2& number range interval &V3&
reached the critical area. However, a number assignment was still
possible.

System Response

The PRT can be created by the system.

How to fix this error?

INCLUDE NA_SYSAD1

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CF891 - Number assignment: Numbers are in the critical area. ?

  The SAP error message CF891, which states "Number assignment: Numbers are in the critical area," typically occurs in the context of number ranges for various objects in SAP, such as documents, orders, or other entities that require unique identification numbers. This error indicates that the system is trying to assign a number from a number range that is nearing its limit or has reached a critical threshold.
  Cause:
  
  Number Range Exhaustion: The number range defined for a particular object is either exhausted or is approaching its maximum limit.
  Configuration Issues: The number range may not be properly configured, or the intervals may not be set correctly.
  Critical Area: The system has defined a "critical area" for number assignment, which is a range of numbers that should not be used to avoid conflicts or issues.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object associated with the error.
  Check the current status of the number range and see if it is nearing its limit.
  
  
  
  Extend the Number Range:
  
  If the number range is exhausted, you can extend it by adjusting the upper limit.
  This can be done in the same SNRO transaction by editing the number range intervals.
  
  
  
  Create New Number Range:
  
  If extending the existing number range is not feasible, consider creating a new number range and assigning it to the relevant object.
  
  
  
  Check for Critical Area Settings:
  
  Review the settings for critical areas in the number range configuration. Ensure that the critical area is set appropriately and that it does not overlap with the used range.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or consult with your SAP Basis or functional team for specific guidelines related to number range management.
  
  
  
  Testing:
  
  After making changes, perform tests to ensure that the number assignment works correctly without triggering the error.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: Number Range Object Maintenance
  SNUM: Number Range Management
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to number range management.
  User Authorization: Ensure that you have the necessary authorizations to make changes to number ranges.
  
  By following these steps, you should be able to resolve the CF891 error and ensure that number assignments proceed without issues.