Same issue for me here. It is really frustrating having no samples about the odata filtering.
I tried to get a filter running for a small xrm sample with a new entity registrations.
Nevertheless I get this error:
A binary operator with incompatible types was detected. Found operand types 'Microsoft.Dynamics.CRM.new_event' and 'Edm.Guid' for operator kind 'Equal'.\",\r\n \"innererror\": {\r\n \"message\": \"A binary operator with incompatible types was detected.
This leads me to the question, how can I filter with guids? Is there an option for casting?
