Error when sending request to zoho

Error when sending request to zoho

Hi,

Some where in my application there is need to update the Leads record with some data for some specific fields. It is working fine when the data is small/ not too bulky.  When there is huge data for a field in the leads record, when my application sends request to zoho for update, i am getting this error "The underlying connection was closed: The connection was closed unexpectedly.".

I am not sure why it is happening. Can any body suggest a solution on this issue?

Thanks