Gstr1 / error: invoices already submitted

HELLO . 

SURELY U HAVE PUT ONE INVOICE TWICE 

RE-CHECK GSTR 1 

this happened to me. if the customer has only one invoice and this glitch occurs, then their gstin is not shown in the list of invoices.

upload a fake invoice entry for the same customer. start your process after clearing cache, fresh login and then make sure you dont press backspace on the keyboard to go go back. always use the back button provided in the site. once second invoice is uploaded properly, the gstin will be made visible in the list of invoices. then you can click and open the gstin and delete the old and the fake invoice. then start over without any issue.