How to fix SAP error UD404?

What causes this issue? You tried to assign another data model or an entity type already assigned to the data model. Multiple assignments on a single hierarchy level are not allowed.System Response The desired operation was not performed.How to fix this error? 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.

How To Fix UD404 - Assignment already exists

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SAP Error Message - Details

Message type: E = Error
Message class: UD - EDM - Enterprise Data Model
Message number: 404
Message text: Assignment already exists
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What causes this issue?
You tried to assign another data model or an entity type already
assigned to the data model. Multiple assignments on a single hierarchy
level are not allowed.
System Response
The desired operation was not performed.
How to fix this error?
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.

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