How To Fix ESH_OM_OBJ_MODEL_REP478 - DATATYPE &1 requires declaration of length (field "LENG")

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_OM_OBJ_MODEL_REP - Object Model Repository

• Message number: 478

• Message text: DATATYPE &1 requires declaration of length (field "LENG")

What causes this issue?

The field "DATATYPE" is specified as &v1&. This requires the declaration
of a length in bytes in field "LENG".

System Response

The data type is inconsistent.

How to fix this error?

Specify the length.

Procedure for System Administrators

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

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_REP478 - DATATYPE &1 requires declaration of length (field "LENG") ?

  The SAP error message ESH_OM_OBJ_MODEL_REP478 indicates that there is an issue with the declaration of a data type in the context of the SAP Enterprise Search (ESH) or Object Model. Specifically, the error states that a certain data type (denoted by &1) requires a declaration of length for the field "LENG".
  Cause:
  This error typically arises when:
  
  A data type is defined without specifying its length, which is mandatory for certain data types in SAP.
  There may be inconsistencies in the data model or object model definitions, particularly when custom data types or structures are involved.
  The data type being referenced is not properly defined in the ABAP Dictionary.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Data Type Definition:
  
  Go to the ABAP Dictionary (transaction SE11).
  Look for the data type mentioned in the error message (replace &1 with the actual data type).
  Ensure that the data type has a length defined for the field "LENG". If it is missing, you will need to modify the data type to include the length.
  
  
  
  Modify the Data Type:
  
  If you find that the length is not defined, you can edit the data type and specify the required length for the field "LENG".
  Save and activate the changes.
  
  
  
  Check Related Objects:
  
  If the data type is used in multiple places (like structures, tables, or function modules), ensure that all references are updated accordingly.
  Check if there are any related objects that might also need adjustments.
  
  
  
  Rebuild the Object Model:
  
  After making changes, you may need to rebuild the object model or re-index the search to ensure that the changes take effect.
  You can do this through the relevant transaction for ESH or by using the appropriate report.
  
  
  
  Testing:
  
  After making the necessary changes, test the functionality that was causing the error to ensure that it is resolved.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (ABAP Dictionary), SE80 (Object Navigator), and ESH-related transactions for managing search configurations.
  Documentation: Refer to SAP Help documentation for Enterprise Search and Object Model for more details on data types and their configurations.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance.
  
  If the issue persists after following these steps, consider reaching out to your SAP Basis or development team for further assistance, as they may have more insights into the specific configurations of your SAP system.