How To Fix RU166 - Error in number assignment for error document (goods movement)

RU166 - Overview

• Message type: E = Error

• Message class: RU - Messages for order completion confirmation

• Message number: 166

• Message text: Error in number assignment for error document (goods movement)

What causes this issue?

When assigning a number for the document for the incorrect goods
movement in client &V1& an error occurred. It is possible that the
number range has not been fully maintained.

How to fix this error?

You should check the definition of the number range 01 for the number
range object AFFW_NR.
Start transaction SNUM, supply field NRIV-OBJECT with AFFW_NR.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RU166 - Error in number assignment for error document (goods movement) ?

  The SAP error message RU166, which indicates "Error in number assignment for error document (goods movement)," typically occurs during the processing of goods movements, such as goods receipts or goods issues. This error is related to the number assignment for error documents, which are generated when there is an issue with the goods movement process.
  Causes:
  
  
  Number Range Issues: The most common cause of this error is that the number range for the error documents is not properly defined or has been exhausted. Each document type in SAP requires a defined number range to generate unique document numbers.
  
  
  Configuration Errors: There may be configuration issues in the document type settings or number range settings in the SAP system.
  
  
  Authorization Issues: Sometimes, the user may not have the necessary authorizations to create or access the error documents.
  
  
  System Bugs or Inconsistencies: Occasionally, bugs or inconsistencies in the SAP system can lead to this error.
  
  
  Solutions:
  
  
  Check Number Range