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Microsoft Dynamics 365 | Integration, Dataverse...
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Customer Connector Error - PATCH Requests of EdmType Collection are not allowed

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I have successfully created a custom connector for business central and am able to run GET and POST requests without issue, however I receive the following error when attempting a PATCH request:

{
  "error": {
    "code": "BadRequest_MethodNotAllowed",
    "message": "'PATCH' requests for 'JobTasks' of EdmType 'Collection' are not allowed within Dynamics 365 Business Central OData web services.  CorrelationId:  54147e03-7d2f-4eb1-9b4a-acab95a233c3."
  }
}


Here's a screenshot of what my definition looks like - as you can see the eTag for the record I am attempting to update is being passed in the header and has been formatted properly with \-escapes removed.

Screenshot-2021_2D00_07_2D00_13-110426.png

Additionally, if I change the If-Match etag to the improperly formatted value (W\/"JzQ0O3JaQjNzZFo0eGUyVVppV1lBdFg1QUpIOTRmS2g2NUE1UVlHYm82LzJ3czg9MTswMDsn\") I get a different error:

{
  "error": {
    "code": "RequestDataInvalid",
    "message": "Request data is invalid."
  }
}

Any advice? I've spent several hours sifting through similar issues but still seem to get the EdmType Collection error.

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