Hello,
some time ago we have I have implemented integration with ZohoCRM. Yesterday our client reported that he cant integrate. I have checked it and I found an error:
Error code 4600: Unable to process your request. Please verify whether you have entered proper method name,parameter and parameter values.
It is very strange because for the rest of clients it works correctly, only for one customer it fails... They generated a new authtoken and there is no change, the same error.