How To Fix VG520 - & is not assigned to an ISO country key (header, function &, field &)

VG520 - Overview

• Message type: E = Error

• Message class: VG - EDI Messages in SD

• Message number: 520

• Message text: & is not assigned to an ISO country key (header, function &, field &)

What causes this issue?

The specified internal country code has not been allocated an ISO
country code. The error has arisen in the document header for the
specified partner role and the specified field.

How to fix this error?

Maintain the ISO country code.
INCLUDE 'NA_CUST_MAINTAIN_3' OBJECT DOKU ID TX LANGUAGE E

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message VG520 - & is not assigned to an ISO country key (header, function &, field &) ?

  Certainly! Here's a detailed explanation for the SAP error message VG520:
  
  SAP Error Message: VG520
  Message Text:
  & is not assigned to an ISO country key (header, function &, field &).
  
  Cause
  This error occurs when a vendor group (or another grouping key) is not properly assigned or linked to an ISO country key in the system. In SAP, certain master data or configuration elements (like vendor groups, customer groups, or other classification keys) must be assigned to a valid ISO country key to ensure correct processing, especially in international or country-specific business scenarios.
  Specifically, the system is trying to validate that the vendor group (or similar key) is assigned to a country key, but it finds that this assignment is missing or incorrect.
  
  Where It Occurs
  
  During vendor master data creation or change (transaction codes like XK01, XK02, or FK01).
  During vendor invoice posting or other procurement processes.
  In country-specific validations or reports that require ISO country key assignments.
  In