How To Fix O5151 - This customer number is already defined as an alternative ship-to partner

O5151 - Overview

• Message type: E = Error

• Message class: O5 - IS-Oil: MCOE message pool

• Message number: 151

• Message text: This customer number is already defined as an alternative ship-to partner

What causes this issue?

This customer number exists as an alternative ship-to partner in table
OIDMP.

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

System Response

Warning message.

How to fix this error?

You may wish to delete this customer from the contract partner
functions (if possible), or maintain table OIDMP (using the <ZK>Ship-to
partnrs</> pushbutton or transaction O5G2) and remove this as a
possible ship-to partner.
Table OIDMP is used to specify multiple valid ship-to partners for a
contract and then by using the contract restriction function, only
allow call-off orders to be created for those ship-to customers.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O5151 - This customer number is already defined as an alternative ship-to partner ?

  The SAP error message O5151, which states "This customer number is already defined as an alternative ship-to partner," typically occurs when you are trying to assign a customer number as an alternative ship-to party in the system, but that customer number is already being used in that capacity for another customer.
  
  Cause:
  
  Duplicate Assignment: The customer number you are trying to assign as an alternative ship-to partner is already linked to another customer in the system.
  Data Entry Error: There may have been a mistake in data entry, leading to an attempt to assign the same customer number multiple times.
  
  Configuration Issues: There might be issues in the configuration of the partner functions in the customer master data.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Existing Assignments:
  
  Go to the customer master data (transaction code XD03 for display).
  Check the partner functions for the customer you are trying to assign as an alternative ship-to