How To Fix CRM_ES027 - BOL type mismatch; BOL type of relation is &1 and foreign template is &2

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_ES - ES: Message Class for Enterprise Service

• Message number: 027

• Message text: BOL type mismatch; BOL type of relation is &1 and foreign template is &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CRM_ES027 - BOL type mismatch; BOL type of relation is &1 and foreign template is &2 ?

  The SAP error message CRM_ES027 indicates a type mismatch in the Business Object Layer (BOL) when working with relationships in SAP CRM. Specifically, it suggests that there is a discrepancy between the BOL type of a relation and the expected foreign template type.
  Cause:
  The error typically arises due to one of the following reasons:
  
  Incorrect Configuration: The BOL type defined for a relationship does not match the expected type of the foreign template. This can happen if the relationship is incorrectly configured in the BOL model.
  Data Model Changes: If there have been recent changes to the data model or BOL types, it may lead to inconsistencies.
  Custom Development: If there are custom developments or enhancements that involve BOL types, they may not align correctly with the standard types.
  Inconsistent Data: The data being processed may not conform to the expected structure, leading to type mismatches.
  
  Solution:
  To resolve the CRM_ES027 error, you can take the following steps:
  
  
  Check BOL Configuration:
  
  Review the BOL configuration for the relationship in question. Ensure that the BOL type of the relation matches the expected foreign template type.
  Use transaction BOL or BOL Modeler to analyze the BOL model and relationships.
  
  
  
  Review Data Model Changes:
  
  If there have been recent changes to the data model, verify that all related components have been updated accordingly.
  Ensure that any changes made to the BOL types are reflected in the relationships.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the relevant BOL processing code to identify where the mismatch occurs.
  Check the data being passed to the BOL layer to ensure it conforms to the expected types.
  
  
  
  Check Custom Code:
  
  If there is custom code involved, review it to ensure that it correctly handles the BOL types and relationships.
  Make sure that any custom BOL types are properly defined and registered.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to BOL and CRM for any known issues or additional guidance.
  
  
  
  Testing:
  
  After making changes, conduct thorough testing to ensure that the issue is resolved and that no new issues have been introduced.
  
  
  
  Related Information:
  
  BOL (Business Object Layer): This is a layer in SAP CRM that abstracts the business logic and data access, allowing for a more flexible and modular approach to application development.
  CRM Data Model: Understanding the CRM data model and how BOL types relate to each other is crucial for troubleshooting issues like this.
  SAP Notes: Check SAP Notes for any specific patches or updates related to BOL type mismatches or CRM errors.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.