How To Fix CMS_OMS_BP_LNK020 - Mandatory value type &1 should not be deleted for this object

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS_OMS_BP_LNK - Business Partner Service Link

• Message number: 020

• Message text: Mandatory value type &1 should not be deleted for this object

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMS_OMS_BP_LNK020 - Mandatory value type &1 should not be deleted for this object ?

  The SAP error message CMS_OMS_BP_LNK020 indicates that a mandatory value type (represented by &1) is being deleted for a specific object, which is not allowed. This error typically arises in the context of Business Partner (BP) management or when dealing with master data in SAP Customer Management (CMS) or SAP S/4HANA.
  Cause:
  The error occurs when:
  
  A mandatory field or value type that is required for the object (like a Business Partner) is being removed or set to a null value.
  The system enforces data integrity rules that prevent the deletion of mandatory fields, as they are essential for the proper functioning of the application and data consistency.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Mandatory Field: Check the error message for the specific value type indicated by &1. This will tell you which mandatory field is causing the issue.
  
  
  Review Object Configuration: 
  
  Go to the configuration settings for the Business Partner or the relevant object in the SAP system.
  Ensure that the mandatory fields are correctly populated and not being inadvertently deleted.
  
  
  
  Data Entry: If you are trying to delete or modify a record, ensure that you are not removing any mandatory fields. Instead, update the record without deleting the required fields.
  
  
  Check Customizations: If there are any custom developments or enhancements in your SAP system, review them to ensure they are not affecting the mandatory fields.
  
  
  Consult Documentation: Refer to the SAP documentation or help resources for more information on the specific object and its mandatory fields.
  
  
  Testing: After making the necessary adjustments, test the changes in a development or quality assurance environment before applying them to production.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to Business Partner management, such as BP (Business Partner) or BP_MON (Business Partner Monitor).
  Data Model: Understand the data model of Business Partners in your SAP system, including the relationships and dependencies between different fields.
  
  If the issue persists after following these steps, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.