How To Fix ESH_OM_OBJ_MODEL_RP2779 - Node field &1 cannot be assigned to request field &2 as it is of type &3

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_RP2 - Object Model Repository (2)

• Message number: 779

• Message text: Node field &1 cannot be assigned to request field &2 as it is of type &3

What causes this issue?

Request fields can only be assigned to ranking factor attributes if they
are not of type &v3&.
Node field &v1& is assigned to request field &v2& which itself is
assigned to a ranking factor attribute. As the node field is of type
&v2& it cannot be assigned to the request field.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_RP2779 - Node field &1 cannot be assigned to request field &2 as it is of type &3 ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2779 indicates a type mismatch between two fields in a request. Specifically, it states that a node field (field &1) cannot be assigned to a request field (field &2) because they are of different types (type &3). This error typically occurs in the context of SAP's Enterprise Search or Object Model, where data structures are expected to match in terms of their types.
  Cause:
  
  Type Mismatch: The most common cause of this error is that the data types of the fields being compared or assigned do not match. For example, one field might be a string while the other is an integer.
  Incorrect Mapping: There may be an issue with how the fields are mapped in the configuration of the search model or the data source.
  Data Model Changes: If there have been recent changes to the data model or the underlying database schema, it could lead to inconsistencies in field types.
  
  Solution:
  
  Check Field Types: Review the definitions of the fields involved (field &1 and field &2) to ensure they are of compatible types. You can do this by checking the data dictionary or the relevant configuration settings in SAP.
  Adjust Mapping: If the fields are supposed to be compatible, check the mapping configuration in the search model or data source. Ensure that the fields are correctly mapped and that their types align.
  Data Type Conversion: If necessary, implement a conversion mechanism to ensure that the data types match. This could involve using functions or methods to convert one type to another before assignment.
  Review Recent Changes: If the error started occurring after recent changes, review those changes to identify any modifications that may have affected the data types or mappings.
  Consult Documentation: Refer to SAP documentation or notes related to the specific version you are using, as there may be known issues or additional guidance on resolving this error.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect the data types and structures involved.
  Debugging: If you have access to debugging tools, you can trace the execution to see where the type mismatch occurs in the code.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify the root cause of the error and implement a suitable solution.