How To Fix R11128 - Contact person relationship does not exist between partners &1 and &2

SAP Error Message - Details

• Message type: E = Error

• Message class: R11 - Business Partner and BDT

• Message number: 128

• Message text: Contact person relationship does not exist between partners &1 and &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message R11128 - Contact person relationship does not exist between partners &1 and &2 ?

  The SAP error message R11128 indicates that there is an issue with the relationship between two business partners in the system. Specifically, it means that the contact person relationship does not exist between the two specified partners (denoted as &1 and &2 in the error message).
  Cause:
  This error typically arises in scenarios where:
  
  You are trying to create or process a transaction that requires a contact person relationship between two business partners (e.g., a customer and a vendor).
  The relationship has not been established in the system, meaning that the necessary configuration or master data setup is missing.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Business Partner Master Data:
  
  Go to the transaction code BP (Business Partner) in SAP.
  Search for both business partners (the ones represented by &1 and &2).
  Verify if the contact person relationship is defined between them.
  
  
  
  Create or Maintain the Relationship:
  
  If the relationship does not exist, you will need to create it.
  In the Business Partner transaction, select the relevant business partner and navigate to the "Relationships" tab.
  Add a new relationship by specifying the partner type (e.g., contact person) and the relevant partner number.
  
  
  
  Check Configuration:
  
  Ensure that the necessary configuration for business partner relationships is set up correctly in the system.
  This may involve checking the customizing settings in the SPRO transaction under "Cross-Application Components" > "Master Data Synchronization" > "Business Partner" > "Define Relationships".
  
  
  
  Test the Changes:
  
  After creating or updating the relationship, try to execute the transaction again to see if the error persists.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  BP - Business Partner Maintenance
  SPRO - Customizing Implementation Guide
  
  
  Business Partner Roles: Ensure that the roles assigned to the business partners are appropriate for the relationship you are trying to establish.
  Documentation: Refer to SAP Help documentation for detailed information on business partner relationships and configuration.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any specific patches or updates related to this error message.