How To Fix ME217 - External number assignment not defined for document type &

ME217 - Overview

• Message type: E = Error

• Message class: ME - Purchasing: General Messages

• Message number: 217

• Message text: External number assignment not defined for document type &

What causes this issue?

An external <GL:number_range>number range</> is not defined
for this <GL:document_type>document type</>.

How to fix this error?

Leave the field empty.

Error message extract from SAP system. Copyright SAP SE.

ME217 - Details

• The SAP error message ME217, which states "External number assignment not defined for document type &," typically occurs when you are trying to create a purchasing document (like a purchase order) using an external number range, but the system is not configured to allow external number assignment for that specific document type.
  
  Cause:
  
  Number Range Configuration: The document type you are trying to use (e.g., Purchase Order, Purchase Requisition) is set up to use internal number assignment, but you are attempting to create it with an external number.
  Document Type Settings: The settings for the document type in the configuration may not have been properly defined to allow external number assignment.
  Missing Number Range: There may not be a defined external number range for the document type in question.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Number Range Configuration:
  
  Go to the transaction code SNRO (Number Range Objects).
  Look for the relevant number range object