How To Fix R1528 - DiffType for BP role BP1 must be the same as DiffType for RelCat

SAP Error Message - Details

• Message type: E = Error

• Message class: R1 - Business Partner Messages from S_BUPA_GENERAL

• Message number: 528

• Message text: DiffType for BP role BP1 must be the same as DiffType for RelCat

What causes this issue?

If you want a semantic check for business partner 1 that references the
BP role, the same differentiation type must be assigned to this BP role
as is assigned to the relationship category.

System Response

Error message

How to fix this error?

Check whether the differentiation type you need is assigned to the
relationship category.
Select only one BP role to which the same differentiation type is
assigned.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message R1528 - DiffType for BP role BP1 must be the same as DiffType for RelCat ?

  The SAP error message R1528 indicates that there is a mismatch in the differentiation type (DiffType) for a Business Partner (BP) role and the relationship category (RelCat) in the system. This error typically arises when you are trying to create or modify a business partner relationship, and the differentiation types for the business partner role and the relationship category do not match.
  Cause:
  
  Mismatch in Differentiation Types: The differentiation type for the business partner role (BP1) does not match the differentiation type for the relationship category (RelCat) you are trying to use. Each business partner role and relationship category has specific differentiation types that must align for the relationship to be valid.
  Configuration Issues: There may be a configuration issue in the system where the differentiation types for the roles and categories have not been set up correctly.
  
  Solution:
  
  
  Check Differentiation Types: 
  
  Go to the configuration settings for the business partner roles and relationship categories in SAP.
  Verify the differentiation types assigned to the business partner role (BP1) and the relationship category (RelCat).
  Ensure that both have the same differentiation type.
  
  
  
  Adjust Configuration:
  
  If there is a mismatch, you may need to adjust the configuration to ensure that the differentiation types align. This may involve changing the differentiation type for either the business partner role or the relationship category.
  
  
  
  Consult Documentation: 
  
  Review the SAP documentation related to business partner configuration and relationship management to understand the requirements for differentiation types.
  
  
  
  Testing: 
  
  After making the necessary adjustments, test the creation or modification of the business partner relationship again to ensure that the error has been resolved.
  
  
  
  Related Information:
  
  Business Partner Roles: In SAP, business partners can have multiple roles (e.g., customer, vendor) and each role can have specific attributes and settings.
  Relationship Categories: These define the type of relationship between business partners (e.g., parent-child, supplier-customer).
  Differentiation Types: These are used to distinguish between different instances of business partners or relationships, allowing for more granular control and management.
  
  If the issue persists after checking and adjusting the configurations, it may be beneficial to consult with your SAP support team or refer to SAP Notes for any known issues or patches related to this error message.