How To Fix L3212 - External assignment of numbers from an internal number range not allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: L3 -

• Message number: 212

• Message text: External assignment of numbers from an internal number range not allowed

What causes this issue?

The external storage unit number to be issued is in an internal number
range.

How to fix this error?

Unlike other applications, external number ranges in the WM system are
not explicitly defined. Instead, they are taken from the unused numbers
in the internal number ranges when the "Issue type" switch in the
Customizing application allows external numbers to be issued for the
warehouse number.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message L3212 - External assignment of numbers from an internal number range not allowed ?

  The SAP error message L3212, which states "External assignment of numbers from an internal number range not allowed," typically occurs when there is an attempt to assign a number from an internal number range to a document or object that is configured to use external number assignment. This situation often arises in the context of document numbering in modules like Logistics or Finance.
  Cause:
  
  Number Range Configuration: The number range for the document type you are trying to create or modify is set to "internal" but an external number is being provided.
  Document Type Settings: The document type may be configured to use internal number assignment, but the system is receiving an external number.
  User Input: A user may be trying to manually enter a number that is not allowed by the system's configuration.
  
  Solution:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Find the relevant number range object for the document type you are working with.
  Verify if the number range is set to "internal" or "external." If it is set to "internal," you should not be providing an external number.
  
  
  
  Adjust Document Type Settings:
  
  Use transaction code OBA7 (for Financial Accounting) or OMSN (for Logistics) to check the settings for the document type.
  Ensure that the document type is configured correctly according to your business requirements (internal vs. external).
  
  
  
  Use Correct Number Assignment:
  
  If the document type is set to use internal number assignment, do not enter a number manually. Let the system generate the number automatically.
  If you need to use an external number, you may need to change the configuration to allow for external number assignment.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or consult with your SAP Basis or functional team to ensure that the number range settings align with your business processes.
  
  
  
  Related Information:
  
  
  Transaction Codes: 
  
  SNRO: To manage number range objects.
  OBA7: To configure document types in Financial Accounting.
  OMSN: To configure document types in Logistics.
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates related to this error message.
  
  
  Testing: After making changes, test the document creation process to ensure that the error does not occur again.
  
  
  By following these steps, you should be able to resolve the L3212 error and ensure that your number assignment processes are functioning correctly.