E.g. 409 description for https://app.swaggerhub.com/apis/Plattform_i40/AssetAdministrationShellRepositoryServiceSpecification/V3.0.1_SSP-001#/Asset%20Administration%20Shell%20Repository%20API/PostAssetAdministrationShell says:

Conflict, a resource which shall be created exists already. Might be thrown if a Submodel or SubmodelElement with the same ShortId is contained in a POST request.

Even though the data object is not a Submodel / SME but an Asset Administration Shell

Proposal:

Make the description more generic, e.g., by using the term "resource".