How To Fix MDG_IDM_TOOLS037 - Key structure of Object ID Type '&1' (&2) contains invalid datatype

SAP Error Message - Details

• Message type: E = Error

• Message class: MDG_IDM_TOOLS - Message Class for ID Mapping Tools

• Message number: 037

• Message text: Key structure of Object ID Type '&1' (&2) contains invalid datatype

What causes this issue?

The <DS:DE.MDG_STRUCNAME_OBJECT_ID>key structure</> assigned to
<DS:DE.MDG_IDS_TYPE_CODE_BS>object ID type</> '&V1&' (&V2&) which
belongs to <DS:DE.MDG_OBJECT_TYPE_CODE_BS>object type</> '&V4& (&V3&)
includes at least one key component with a data type that is not
supported by key mapping.
Because the structure was changed after it was assigned to the object ID
type, no error was processed during the customizing activity.

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

System Response

How to fix this error?

Start customizing activity <DS:SIMG.MDG_IDM_007>'Assign Key Structures
to Object Identifiers'</> and press enter. An error message with
additional information will appear.
After you have done the necessary corrections, you can proceed with your
current activities.

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 MDG_IDM_TOOLS037 - Key structure of Object ID Type '&1' (&2) contains invalid datatype ?

  The SAP error message MDG_IDM_TOOLS037 indicates that there is an issue with the key structure of an Object ID Type in the Master Data Governance (MDG) system. Specifically, it states that the key structure contains an invalid datatype. This error typically arises during the configuration or activation of an Object ID Type in the MDG system.
  Cause:
  
  Invalid Data Type: The key structure for the specified Object ID Type contains a field with a datatype that is not supported or recognized by the MDG framework.
  Configuration Issues: There may be a misconfiguration in the Object ID Type settings or the underlying data model.
  Inconsistent Data Model: The data model may have inconsistencies or errors that lead to invalid datatypes being defined for key fields.
  
  Solution:
  
  
  Check Object ID Type Configuration:
  
  Go to the MDG configuration settings and review the Object ID Type configuration.
  Ensure that all fields in the key structure have valid and supported datatypes.
  
  
  
  Review Data Model:
  
  Check the data model associated with the Object ID Type. Ensure that the key fields are correctly defined and that their datatypes are compatible with MDG requirements.
  If necessary, adjust the data model to correct any inconsistencies.
  
  
  
  Adjust Data Types:
  
  If you identify any fields with invalid datatypes, change them to valid types that are supported by the MDG framework (e.g., CHAR, NUMC, DATS, etc.).
  
  
  
  Re-activate Object ID Type:
  
  After making the necessary changes, re-activate the Object ID Type to ensure that the changes take effect.
  
  
  
  Check for Notes and Patches:
  
  Look for any SAP Notes or patches that may address this specific error. Sometimes, SAP releases updates that fix known issues.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for MDG to understand the requirements and limitations regarding Object ID Types and their key structures.
  
  
  
  Related Information:
  
  SAP Notes: Search the SAP Support Portal for any relevant notes that might provide additional insights or solutions for this error.
  MDG Documentation: Review the Master Data Governance documentation for best practices in configuring Object ID Types and data models.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.