How To Fix MDGBP018 - Assignment of BP role &1 not permitted because of disallowed transition

SAP Error Message - Details

• Message type: E = Error

• Message class: MDGBP - Master Data Governance: Business Partner specific messages

• Message number: 018

• Message text: Assignment of BP role &1 not permitted because of disallowed transition

What causes this issue?

It is not possible to process the BP role &V1& with the validity &V2& to
&V3&, as it is contained along with the BP role &V4& in a role
exclusion group, which means that both roles either overlap or are
adjacent with regard to their validity, and no transitions are defined
between the BP roles &V1& and &V4&.

System Response

The system issues an error message.

How to fix this error?

The following possibilities exist:
Define transitions between the BP roles &V1& and &V4&, if this
complements from a business point of view the usage of the BP roles in
processes.
Choose the performance assistant Customizing in the toolbar in order to
navigate to the relevant Customizing.
Choose the validity of the BP role &V1& or &V4& in such a way that their
validity does not overlap, so that the validity start of the BP role
&V1& is greater than the validity end of the BP role &V4& plus one day,
or the validity end of the BP role &V1& is smaller than the validity
start of the BP role &V4& minus one day.
Choose the validity of a BP role in such a way that the validity of the
other BP role falls completely within the validity period of the first
BP role. In this way the other BP role in each case is deleted .

Procedure for System Administrators

Check the settings in the Customizing activity
<DS:SIMG.CABP_BUPA_TB003C>Define BP Role Exclusion Groups</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MDGBP018 - Assignment of BP role &1 not permitted because of disallowed transition ?

  The SAP error message MDGBP018 indicates that there is an issue with the assignment of a Business Partner (BP) role due to a disallowed transition. This typically occurs when you are trying to assign a role to a Business Partner that is not allowed based on the current status or configuration of that Business Partner.
  Cause:
  The error can be caused by several factors, including:
  
  
  Role Transition Restrictions: Certain roles may have specific transition rules that prevent them from being assigned under certain conditions. For example, if a Business Partner is in a specific status (like "Inactive" or "Blocked"), you may not be able to assign certain roles.
  
  
  Configuration Settings: The system may have been configured to restrict certain transitions between roles. This can be set up in the customizing settings for Business Partner roles.
  
  
  Missing Authorizations: The user attempting to make the assignment may not have the necessary authorizations to perform the action.
  
  
  Data Inconsistencies: There may be inconsistencies in the data related to the Business Partner that prevent the role assignment.
  
  
  Solution:
  To resolve the MDGBP018 error, you can take the following steps:
  
  
  Check Current Status: Verify the current status of the Business Partner. If it is inactive or blocked, you may need to change its status before assigning the new role.
  
  
  Review Role Transition Rules: Check the configuration settings for Business Partner roles in the SAP system. You can do this by navigating to the relevant customizing transaction (e.g., SPRO) and reviewing the settings under "Business Partner" -> "Role Management".
  
  
  User Authorizations: Ensure that the user has the necessary authorizations to assign the role. You may need to consult with your SAP security team to verify this.
  
  
  Data Consistency Check: Perform a data consistency check for the Business Partner. Ensure that all required fields are filled out correctly and that there are no conflicting entries.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific details on the roles and transitions that are allowed for Business Partners.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  Related Information:
  
  Business Partner Roles: Understanding the different roles that can be assigned to a Business Partner and their implications is crucial. Each role has specific functions and permissions associated with it.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Transaction Codes: Familiarize yourself with transaction codes related to Business Partner management, such as BP (Business Partner) and relevant customizing transactions.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.