12 September 2018
Yes , it can be amended . on your GSTR 1 of the current month , fill up all the required details pertaining to current month , Click on Coloum 9A ,It will ask for FY ,write 2017-18 , Invoice No. - Feed the exact same invoice number for which wrong GSTN Number had been entered , click on amend invoice , Invoice details will be open . Feed the correct GSTN Number . In Revised Invoice Number , feed the same old invoice number . & click the save button It will show processed invoice . Go Back , Refresh and check - Generate summary . Coloum 9A will show amended invoice with correct GST Number file your return
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