How To Fix CMS_AST121 - Interval &1 is not internal; select an internal number range interval

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS_AST - Message Class for Asset

• Message number: 121

• Message text: Interval &1 is not internal; select an internal number range interval

What causes this issue?

This error has originated while using the <ZH>number_get_next
</>function module of number ranges. You have selected an internal
number range assignment type for the asset type. Therefore, you must
specify an internal number range interval.

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

System Response

How to fix this error?

Check for the number range settings for the asset type.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMS_AST121 - Interval &1 is not internal; select an internal number range interval ?

  The SAP error message CMS_AST121 indicates that the specified interval (in this case, &1) is not an internal number range interval. This error typically occurs when you are trying to use a number range that is not defined as internal in the system settings.
  Cause:
  
  Incorrect Number Range Configuration: The number range you are trying to use is set up as an external number range instead of an internal one. Internal number ranges are automatically generated by the system, while external ones require manual entry.
  Misconfiguration in the Number Range Object: The number range object associated with the interval may not be configured correctly, leading to the system not recognizing it as an internal range.
  User Error: The user may have mistakenly selected or entered a number range that is not intended for internal use.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to transaction code SNRO (Number Range Objects).
  Enter the relevant number range object and check the configuration.
  Ensure that the interval you are trying to use is defined as an internal number range.
  
  
  
  Create or Modify Number Range:
  
  If the interval is not defined as internal, you may need to create a new internal number range or modify the existing one.
  Ensure that the number range is set to "Internal" in the configuration settings.
  
  
  
  Use Correct Interval:
  
  If you are using a specific interval in your transaction, make sure to select an interval that is confirmed as internal.
  
  
  
  Consult Documentation:
  
  Review the SAP documentation or help files related to number range management for further guidance on setting up internal number ranges.
  
  
  
  Contact SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support or your internal SAP team for assistance.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SNRO: To manage number range objects.
  SNUM: To display and maintain number ranges.
  
  
  Number Range Types:
  
  Internal: Automatically generated by the system.
  External: Manually entered by users.
  
  
  Best Practices: Always ensure that number ranges are properly configured before using them in transactions to avoid such errors.
  
  By following these steps, you should be able to resolve the CMS_AST121 error and ensure that you are using the correct internal number range intervals in your SAP system.