I’m currently modifying code which uses the Microsoft.OData.Client. When calling SaveChangesAsync() I get back the following error message:

Microsoft.OData.Client.DataServiceClientException: {
    "error":{
    "code":"","message":"An error has occurred.","innererror":{
    "message":"No resources were found when selecting for update.","type":"Microsoft.Dynamics.Platform.Integration.Services.OData.ODataArgumentException"

The code to add and remove these object from Dynamics works without any errors. I can query for the object and no null will be returned, it exists, every property seems right when I compare the result I get back in Postman.

I then tried querying for the object, which obviously succeeds before modifying the property and saving it. Unfortunately that also returns the error message above. I tried modifying other properties and updating those, but the same thing happens. Does anyone have any clues what’s happening here?

public class Client: DataServiceContext
{
    public virtual DataServiceQuery<ODataObjectToModify> SomeObjects { get; }

    public Client(Uri serviceRoot) : base(serviceRoot)
    {
        this.SomeObjects = base.CreateQuery<ODataObjectToModify>("SomeObject");
    }

    public virtual void SomeMethodToUpdateAnObject(ODataObjectToModify objectToModify)
    {
        objectToModify.SomeCode = "GDD";
        
        base.UpdateObject(objectToModify);
    }
}

—

[Key("SomeKey")]
public class ODataObjectToModify
{
    [IgnoreClientProperty]
    public long Identifier { get; init; }

    [IgnoreClientProperty]
    public string SomeNumber { get; init; } = string.Empty;

    public required string SomeCode { get; set; }
}