How To Fix R1477 - Number &2&4 is already assigned to partner &3 for ID type &1

R1477 - Overview

• Message type: E = Error

• Message class: R1 - Business Partner Messages from S_BUPA_GENERAL

• Message number: 477

• Message text: Number &2&4 is already assigned to partner &3 for ID type &1

What causes this issue?

In Customizing the uniqueness of the ID numbers is designated as the
identification category for the identification type. However the number
in question has already been assigned to another partner for this ID
type.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message R1477 - Number &2&4 is already assigned to partner &3 for ID type &1 ?

  The SAP error message R1477 indicates that a specific number (in this case, &2&4) is already assigned to a partner (identified by &3) for a specific ID type (identified by &1). This typically occurs in scenarios where you are trying to assign an identification number (like a tax ID, social security number, etc.) to a business partner, but that number is already in use for another partner.
  
  Cause:
  
  Duplicate Assignment: The primary cause of this error is that the identification number you are trying to assign is already linked to another partner in the system.
  Data Entry Error: There may have been a mistake in data entry, leading to an attempt to assign the same ID to multiple partners.
  System Configuration: The system may be configured to prevent duplicate ID assignments, which is a common practice to maintain data integrity.
  
  
  Solution:
  
  
  Check Existing Assignments: 
  
  Use transaction codes like BP (Business Partner) or SE16N (Data Browser) to