How To Fix MDC_MODEL101 - Table &1 of BO &4 contains unsupported data type &2 for key field &3

SAP Error Message - Details

• Message type: E = Error

• Message class: MDC_MODEL - Messages In Context Of MDC Model

• Message number: 101

• Message text: Table &1 of BO &4 contains unsupported data type &2 for key field &3

What causes this issue?

You want to enable Rule Mining for table <ZH>&V1&</> of Business Object
Type <ZH>&V4&</>. However, Rule Mining does not support data type
<ZH>&V2& </>for key field <ZH>&V3&</>.

System Response

You cannot proceed unless you disable rule mining for table <ZH>&V1&</>
or change the data type.

How to fix this error?

Choose one of the following allowed data types for the key field:
CHAR
NUMC
UNIT
CUKY
LANG
DATS

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 MDC_MODEL101 - Table &1 of BO &4 contains unsupported data type &2 for key field &3 ?

  The SAP error message MDC_MODEL101 indicates that there is an issue with the data type of a key field in a table associated with a Business Object (BO). This error typically arises when the data type of a key field is not supported by the SAP system for the specific context in which it is being used.
  Cause:
  
  Unsupported Data Type: The key field in the specified table has a data type that is not compatible with the requirements of the Business Object or the model being used.
  Model Configuration Issues: There may be a misconfiguration in the model definition or the way the Business Object is set up.
  Data Dictionary Issues: The data type defined in the Data Dictionary (DDIC) for the key field may not be appropriate for the intended use in the Business Object.
  
  Solution:
  
  Check Data Types: Review the data types of the key fields in the specified table. Ensure that they are compatible with the expected data types for key fields in the context of the Business Object.
  Modify Data Type: If the data type is indeed unsupported, consider changing it to a supported type. Common supported types for key fields include CHAR, NUMC, and INT.
  Review Business Object Configuration: Check the configuration of the Business Object to ensure that it is set up correctly and that all key fields are defined properly.
  Consult Documentation: Refer to SAP documentation or the relevant data model guidelines to understand the supported data types for key fields in your specific context.
  Testing: After making changes, test the Business Object to ensure that the error is resolved and that the data behaves as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  Data Dictionary (DDIC): Familiarize yourself with the Data Dictionary in SAP to understand how data types are defined and used.
  Business Object Documentation: Review the documentation for the specific Business Object you are working with to understand its requirements and constraints regarding key fields.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.