i have create an plugin to call external web api to get data when update a field in contact entity
before that my plugin was work and able to get data write in to my another entity but start from wed keep prompt this error out
i have downloaded the log its Exception Message: The remote server returned an error: (400) Bad Request
but when i run in console app is running smoothly even run the request in postman also returning successfully.
this is my plugin code
i tried to debug when the code runs to httpwebresponse will get the error but in my console app is running well
please someone can give a assit