How To Fix VF373 - Flexible numbering routine returned an external number range interval.

VF373 - Overview

• Message type: E = Error

• Message class: VF - Billing

• Message number: 373

• Message text: Flexible numbering routine returned an external number range interval.

What causes this issue?

The billing type of the billing document that you are trying to create
uses a custom routine to determine an appropriate number range interval.
This custom routine is implemented through the BAdI <ZK>Flexible Billing
Document Numbering </>(SD_BIL_FLEX_NUMBERING).
The custom routine that is assigned to the type of billing document that
you are trying to create refers to an external number range interval.
However, only internal number range intervals are permitted.

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

System Response

No billing documents are created.

How to fix this error?

Correct the custom logic in the BAdI implementation so that it refers to
a valid internal number range interval.
For more information, key users can view the documentation for the BAdI
<ZK>Flexible Billing Document Numbering </>(SD_BIL_FLEX_NUMBERING) in
the <ZK>Custom Fields and Logic </>app.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VF373 - Flexible numbering routine returned an external number range interval. ?

  The SAP error message VF373, which states "Flexible numbering routine returned an external number range interval," typically occurs in the context of billing document processing in SAP. This error is related to the number range assignment for billing documents, particularly when using flexible number ranges.
  
  Cause:
  The error can be caused by several factors, including:
  
  
  Number Range Configuration: The number range for billing documents may not be properly configured. This can happen if the number range is set to external but the system is trying to generate a number internally.
  
  
  Missing Number Range: The number range interval for the billing document type may not be defined or may be inactive.
  
  
  Authorization Issues: The user may not have the necessary authorizations to access or use the specified number range.
  
  
  Custom Code: If there are custom routines or enhancements in the number range determination logic, they may not be functioning correctly.
  
  
  
  Solution:
  To resolve the VF373 error, you can take