Service is not responding when using POST .

Hi Devcentral mates,

I have a LTM VIP and the same server running some service. The url is https://renzenapp.abc.com/RezenServices/AccessControl.svc, when POST is sent using postman, getting below error.

415 cannot process the message because the content type 'text/plain;charset=UTF-8' was not the expected type 'test/xml;charset=utf-8'

Solution tried:

Changing content-type, not working.

Need help in fixing this.