My scenario is that I reading messages off a service bus that a plugin or OOB connector from CRM 365 adds a json object to a service bus. Using this approach I see that datetimes are in json:…/parse-json-string-that-represents-the-dynamics-365-plugin-execution-context-received-in-azure-function Trying to use to deserialize the message I encounter an issue: Newtonsoft.Json.JsonSerializationException: ‘Cannot create and populate list type Microsoft.Xrm.Sdk.KeyAttributeCollection. Path ‘OwningExtension.KeyAttributes’, line 1, position 7017.’ So instead I have resorted to using DataContractJsonSerializer. With this I have an issue with dates when trying to map to an entity and early bound classes. The service bus message is of type RemoteExecutionContext – but when I deserialize this message the date formats are in the following: “key”: “createdon”, “value”: “/Date(1633688867000)/” I would like it in the DateTime format before converting to an account model for instance otherwise dates will not work correctly and the mapping will fail. Any ideas on how to solve this would be appreciated.