To upload GSTR1 data from BUSY to the GST Portal, follow the steps given below:
Step 1: Go to the Administration tab, then click on Features & Options, followed by the GST tab. Here, define the GST Portal User Name.
Step 2: In the Display menu, click on GST Report, then GST Return and finally GST E-return option.
Step 3: Click on the GST1 E-return option. After clicking on the same tab, some windows will appear, asking for the mode of generating GSTR1, i.e. Direct Upload, CSV, JSON, or Government template.
Step 4: Click on the Direct Upload option and define the date range for which you want to upload GSTR1 data.
Step 5: After clicking on "OK", four windows will appear, three of which are for checking possible errors between that particular date range, i.e. "Check Errors in Transaction", "Check Errors in HSN Summary", "Check Errors in Document Summary".
Step 6: After checking all possible errors click on Direct Upload option and the data will be upload successfully on the GST Portal.