How To Fix CU018 - Number range error

SAP Error Message - Details

• Message type: E = Error

• Message class: CU - Variants / configuration messages

• Message number: 018

• Message text: Number range error

What causes this issue?

You tried to execute a function, but the program check found a number
range error.

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?

Inform your consultant at SAP.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CU018 - Number range error ?

  The SAP error message CU018, which indicates a "Number range error," typically occurs when the system is unable to assign a new number from a specified number range. This can happen in various contexts, such as when creating new records for master data, documents, or other entities that rely on number ranges.
  Causes of CU018 Number Range Error
  
  
  Exhausted Number Range: The most common cause is that the defined number range has been exhausted. This means that all the numbers in the range have been used up.
  
  
  Incorrect Number Range Configuration: The number range may not be properly configured in the system. This could include issues like the number range not being defined for the specific document type or object.
  
  
  Number Range Status: The number range might be set to "not available" or "not active," preventing the system from assigning new numbers.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access or use the number range.
  
  
  Custom Code or Enhancements: If there are custom developments or enhancements in the system, they might interfere with the standard number range processing.
  
  
  Solutions to CU018 Number Range Error
  
  
  Check Number Range Status:
  
  Go to transaction code SNRO (Number Range Objects).
  Find the relevant number range object and check its status. Ensure that it is active and has available numbers.
  
  
  
  Extend the Number Range:
  
  If the number range is exhausted, you can extend it. This can be done in transaction code SNRO or SNUM.
  Define a new interval or extend the existing one to allow for more numbers.
  
  
  
  Review Configuration:
  
  Ensure that the number range is correctly configured for the specific document type or object. This can be checked in the relevant customizing transaction (e.g., for material master, use transaction OMH1).
  
  
  
  Check Authorizations:
  
  Verify that the user has the necessary authorizations to use the number range. This can be checked in transaction SU53 or by reviewing the user's role assignments.
  
  
  
  Consult with Development Team:
  
  If there are custom developments, consult with the development team to ensure that there are no issues with the custom code that might be affecting number range assignment.
  
  
  
  System Logs:
  
  Check system logs for any additional error messages or information that might provide more context about the issue.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SNRO: Number Range Objects
  SNUM: Number Range Maintenance
  SU53: Authorization Check
  OMH1: Number Range for Material Master
  
  
  
  Documentation: Refer to SAP Help documentation for detailed information on number range management and configuration.
  
  
  SAP Notes: Check SAP Notes for any known issues or patches related to number range errors.
  
  
  By following these steps, you should be able to diagnose and resolve the CU018 number range error in SAP.