Problems/errors with Karvy GST Returns Upload?

How to solve Karvy GST Returns Upload problem/error ?

Dear Sir

This to inform that Karvy has setup help desk for GST returns. Please visit helpdesk.karvygst.com Karvy Helpdesk Please note that call centre help desk no.1800 200 3478 and E-mail as support@karvygst.com for problems if faced any. 

We are pleased to share that many of you have already registered with Karvy and have uploaded sales/purchase data for July. To avoid last minute rush, please register online at asp.swindia.com

Please find attached User Manual for Karvy website, Steps to enable API on GSTN and Karvy Upload Error List.

Hope it helps.

Regards