I've been using the Microsoft.PowerPlatform.Dataverse.Client.ServiceClient for a few years now, and until the 3rd of September, was able to update an existing Dynamics 365 Entity without issue. As of this data, I now consistent get a 'The method or operation is not implemented' exception each time I call it.
This seems like it would be a massive issue and would expect loads of people to be affected if the actual underlying APIs no longer allowed this. So, has something changed which requires a code rewrite?
Sample code:
//query
var existingcontact = await service.RetrieveAsync("contact", contact.ContactId, new ColumnSet(true));
//update contact
if (existingcontact != null)
{
existingcontact["firstname"] = "Something";
//update to dynamics
await service.UpdateAsync(existingcontact);
}
