How To Fix CMS_OMS_BP_LNK004 - Mandatory business partner function &1 missing for this entity object

CMS_OMS_BP_LNK004 - Overview

• Message type: E = Error

• Message class: CMS_OMS_BP_LNK - Business Partner Service Link

• Message number: 004

• Message text: Mandatory business partner function &1 missing for this entity object

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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CMS_OMS_BP_LNK004 - Details

• The SAP error message CMS_OMS_BP_LNK004 indicates that a mandatory business partner function is missing for a specific entity object. This error typically arises in the context of Business Partner (BP) management within SAP, particularly when dealing with the Customer Relationship Management (CRM) or the SAP Customer Experience (CX) modules.
  
  Cause:
  The error occurs when:
  
  A business partner (BP) is created or modified without assigning a required function that is necessary for the specific entity object.
  The system expects certain functions to be assigned to a business partner based on the configuration or the business process requirements, and these functions are not present.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify the Missing Function:
  
  Check the error message for the specific function that is missing (indicated by &1 in the error message).
  Review the business partner configuration to understand which functions are mandatory for the entity object you are working with.
  
  
  
  Assign the Missing Function:
  
  Go to the Business