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

R11128 - Overview

• 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

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.

Unfortunately, there isn't any extra information in this error notice.

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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