InitializeFromRequest executor only supports TargetFieldType = All, and it throws an unsupported exception when a different field type is used

[jordimontana82]

https://learn.microsoft.com/en-us/dotnet/api/microsoft.crm.sdk.messages.targetfieldtype?view=dataverse-sdk-latest

The other options allowed are based on field metadata, so that only fields that are valid for create, read or update are initialized. To implement the other field types the executor would need to search in the field metadata to identify which fields are available for each TargetFieldType.