How To Fix VN126 - Partner details incomplete (partner function missing)

SAP Error Message - Details

• Message type: E = Error

• Message class: VN - Nachrichtensteuerung

• Message number: 126

• Message text: Partner details incomplete (partner function missing)

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message VN126 - Partner details incomplete (partner function missing) ?

  Certainly! Here's a detailed explanation for the SAP error message VN126 - Partner details incomplete (partner function missing):
  
  Error Message
  VN126 - Partner details incomplete (partner function missing)
  
  Cause
  This error occurs when you try to save or process a vendor master record or a purchasing document (like a purchase order) and the system detects that a required partner function is missing in the partner details.
  
  Partner functions are roles assigned to business partners in SAP, such as ordering address, invoicing party, goods supplier, etc.
  In vendor master data or purchasing documents, certain partner functions are mandatory depending on the configuration.
  If these mandatory partner functions are not maintained or assigned, the system throws this error.
  
  
  When does it occur?
  
  During vendor master data creation or change (transaction XK01/XK02).
  When creating or changing purchasing documents (ME21N/ME22N).
  When partner determination procedures require specific partner functions but they are missing.
  
  
  Solution
  
  
  Check Partner Functions in Vendor Master:
  
  Go to vendor master (XK03 or XK02).
  Navigate to the Partner Functions tab.
  Verify if all mandatory partner functions are maintained.
  Add missing partner functions as required.
  
  
  
  Check Partner Determination Procedure:
  
  Partner functions are controlled by partner determination procedures.
  Use transaction SPRO to check the configuration:
  
  IMG Path: Materials Management ? Purchasing ? Partner Determination ? Set Up Partner Determination
  
  
  Verify which partner functions are mandatory for the vendor account group or purchasing document type.
  Adjust the partner determination procedure if necessary.
  
  
  
  Maintain Partner Functions in Purchasing Document:
  
  When creating or changing a purchase order, ensure that all mandatory partner functions are entered.
  Use the Partners tab in ME21N/ME22N to add missing partners.
  
  
  
  Check Vendor Account Group Settings:
  
  Some partner functions are mandatory depending on the vendor account group.
  Check the account group settings in transaction OBD3.
  Adjust mandatory partner functions if needed.
  
  
  
  
  Additional Information
  
  
  Partner Functions Examples:
  
  VN (Vendor)
  WE (Goods Supplier)
  RE (Invoice Recipient)
  LF (Vendor - Ordering Address)
  
  
  
  Partner Determination Procedure:
  
  Controls which partner functions are required, optional, or suppressed.
  Can be assigned to vendor account groups and purchasing document types.
  
  
  
  Related Transactions:
  
  XK01/XK02/XK03 – Vendor Master Maintenance
  ME21N/ME22N – Purchase Order Processing
  OBD3 – Vendor Account Group Configuration
  SPRO – Customizing for Partner Determination
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Missing mandatory partner function in vendor master or purchasing document.
  
  
  Solution
  Maintain required partner functions in vendor master or purchasing document partners tab. Check and adjust partner determination procedures and vendor account group settings.
  
  
  Where to Check
  Vendor master (XK02), Purchase order (ME21N), Partner determination config (SPRO), Vendor account group (OBD3).
  
  
  Impact
  Cannot save or process vendor master or purchasing documents without required partner functions.
  
  
  
  
  If you need help with specific steps or transaction codes, feel free to ask!