How To Fix USMD1094 - Data model &1, entity type &2: Complete key in hierarchy is too long

SAP Error Message - Details

• Message type: E = Error

• Message class: USMD1 - Datenmodel

• Message number: 094

• Message text: Data model &1, entity type &2: Complete key in hierarchy is too long

What causes this issue?

The key length of the hierarchy-defining entity type &V2& or of an
entity type from its hierarchy exceeds the maximum of 60 characters.
The key length of an entity type results from the following lengths:
Length of entity type
Length of entity types that the system considers via relationships of
the <LS>Leading</> relationship type
Length of the technical key fields

System Response

The length violation prevents the system from activating the data model.

How to fix this error?

Check entity type &V2& and the entity types from its hierarchy and
adjust the data model such that the key length of the entity types in
the hierarchy for entity type &V2& does not exceed 60 characters.

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 USMD1094 - Data model &1, entity type &2: Complete key in hierarchy is too long ?

  The SAP error message USMD1094 indicates that there is an issue with the length of the complete key in a hierarchy for a specific data model and entity type. This error typically arises in the context of SAP Master Data Governance (MDG) when working with hierarchies, particularly when the key fields used to define the hierarchy exceed the allowed length.
  Cause:
  The error is caused by the complete key of the hierarchy being too long. In SAP, there are restrictions on the maximum length of keys that can be used in hierarchies. If the combined length of the key fields exceeds this limit, the system will throw this error.
  Solution:
  To resolve the USMD1094 error, you can take the following steps:
  
  
  Review Key Fields: Check the key fields that are being used in the hierarchy. Identify which fields are contributing to the length of the complete key.
  
  
  Reduce Key Length: If possible, modify the hierarchy to use shorter key fields or reduce the number of key fields being concatenated to form the complete key.
  
  
  Adjust Hierarchy Structure: Consider restructuring the hierarchy to avoid using excessively long keys. This may involve changing the way entities are related or how they are represented in the hierarchy.
  
  
  Check Configuration: Ensure that the configuration settings for the data model and entity type are correctly set up. Sometimes, incorrect configurations can lead to unexpected behavior.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on key lengths and hierarchy configurations.
  
  
  Testing: After making changes, test the hierarchy to ensure that the error no longer occurs and that the hierarchy functions as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or fixes related to this error.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  MDG Documentation: Review the Master Data Governance documentation for best practices on managing hierarchies and key lengths.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.