How To Fix ESH_OM_OBJ_MODEL_RP2594 - Data type &1 cannot have type &1 (string) as it's used in the key fields:

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 594

• Message text: Data type &1 cannot have type &1 (string) as it's used in the key fields:

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_OM_OBJ_MODEL_RP2594 - Data type &1 cannot have type &1 (string) as it's used in the key fields: ?

  The SAP error message ESH_OM_OBJ_MODEL_RP2594 indicates that there is a data type mismatch in the context of an object model, specifically related to key fields. This error typically arises when a data type that is not compatible is being used in a key field definition.
  Cause:
  
  Data Type Mismatch: The error suggests that a field defined as a key is using a data type that is not allowed. For example, if a key field is expected to be of a numeric type but is defined as a string, this will trigger the error.
  Incorrect Configuration: The object model configuration may have been set up incorrectly, leading to incompatible data types being assigned to key fields.
  Changes in Data Model: If there have been recent changes to the data model or object definitions, it may have introduced inconsistencies.
  
  Solution:
  
  Check Object Model Configuration: Review the configuration of the object model in the SAP system. Ensure that the data types of the key fields are correctly defined and compatible with the expected types.
  Adjust Data Types: If you find that a key field is incorrectly defined as a string when it should be a different type (e.g., integer, date), modify the data type accordingly.
  Review Key Field Definitions: Ensure that all key fields in the object model are defined with appropriate data types that match the expected definitions.
  Testing: After making changes, test the object model to ensure that the error is resolved and that the system behaves as expected.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on defining object models and key fields.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Transaction Codes: Use transaction codes like SE11 (Data Dictionary) or SE80 (Object Navigator) to inspect and modify the object model definitions.
  Debugging: If the issue persists, consider using debugging tools to trace the execution and identify where the data type mismatch occurs.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.