How To Fix VN003 - Enter the partner function

VN003 - Overview

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 003

• Message text: Enter the partner function

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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VN003 - Details

• SAP Error Message:
  VN003 - Enter the partner function
  
  
  Cause:
  This error occurs when a required partner function is missing in a business transaction or master data entry. In SAP, partner functions define the roles of business partners (such as vendor, customer, contact person) in a document or master record. The system expects a partner function to be entered but it is either not entered or incomplete.
  For example, when creating or changing a vendor master record or processing a purchasing document, the system requires certain partner functions to be specified. If these are missing, the system issues the VN003 message.
  
  When does it typically occur?
  
  During vendor master data creation or change (transaction XK01, XK02, or MK01, MK02).
  When maintaining partner functions in purchasing documents (e.g., purchase orders).
  When partner functions are mandatory but not maintained in the relevant screen or tab.
  
  
  
  Solution:
  
  
  Enter the required partner function:
  
  Go to the relevant screen where partner functions are maintained (e.g., Vendor