How To Fix ESH_SEARCH012 - Field &1: Unknown data type &2

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_SEARCH - ESH Search

• Message number: 012

• Message text: Field &1: Unknown data type &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 ESH_SEARCH012 - Field &1: Unknown data type &2 ?

  The SAP error message ESH_SEARCH012 with the description "Field &1: Unknown data type &2" typically occurs in the context of the SAP Enterprise Search or SAP HANA Search functionalities. This error indicates that the system encountered a field that has an unrecognized or unsupported data type during a search operation.
  Cause:
  
  Unsupported Data Type: The field specified in the error message has a data type that is not recognized by the search framework. This can happen if the data type is custom or not properly defined in the search index.
  Configuration Issues: There may be issues in the configuration of the search index or the data model that lead to the system not being able to interpret the data type correctly.
  Data Model Changes: If there have been recent changes to the data model or the underlying database schema, the search index may not have been updated accordingly.
  Inconsistent Metadata: The metadata for the fields in the search index may not match the actual data types in the database.
  
  Solution:
  
  Check Data Types: Verify the data types of the fields in the underlying database and ensure they are supported by the search framework. You may need to consult the SAP documentation for supported data types.
  Update Search Index: If there have been changes to the data model, ensure that the search index is updated. You can do this by re-indexing the relevant data.
  
  Use transaction code /IWFND/MAINT_SERVICE to manage and activate services.
  Use transaction code /IWFND/SEARCH to manage search configurations.
  
  
  Review Configuration: Check the configuration settings for the search service and ensure that all fields are correctly defined and mapped.
  Check for Custom Fields: If the field is a custom field, ensure that it has been properly defined in the search configuration and that its data type is supported.
  Consult SAP Notes: Look for any relevant SAP Notes or updates that may address this specific error. SAP frequently releases patches and updates that may resolve known issues.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for Enterprise Search and HANA Search for detailed information on supported data types and configuration guidelines.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11 (Data Dictionary), SE80 (Object Navigator), and SE37 (Function Builder) for debugging and analyzing the data model.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.