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GSTR-1 workflow

Help and User Guide

Setup, GSTIN mapping, marketplace imports, sales review, validation, and GSTR-1 JSON generation in one operating guide.

Open GSTR-1
Sources

4

Mapping

3

Review

MIS

Output

JSON

Before You Start

Complete workspace and filing setup before importing reports.

Setup checklist

  • Sign in with approved workspace credentials.
  • Confirm profile, organisation, PAN, and role details.
  • Select the correct GSTR-1 return period.
  • Keep supplier GSTINs and marketplace e-commerce GSTINs ready.
  • Download original source reports from marketplace portals.
  • Use the latest Other Sales template for direct or manual sales.

Return period rule

Import, review, and generate JSON for one selected month and year at a time. Do not mix reports from different periods in a single workspace cycle.

Example: 2026-04
One GSTIN at generation

Monthly GSTR-1 Workflow

Recommended order for every filing period.

1

Select period

Choose the month and year in GSTR-1 before importing any source file.

2

Map GSTINs

Maintain supplier GSTIN to e-commerce GSTIN mapping for marketplace sources.

3

Import reports

Upload platform files and wait until each import job is marked done.

4

Review records

Use MIS Summary and Sales Table to verify counts, taxes, and validation remarks.

5

Create return

Preview the portal summary, generate GSTR-1 JSON, then download the file.

Platform Import Guides

Required files, prerequisites, and processing steps for each source.

Required files

Tax Report (.xlsx or .csv)

Prerequisites

  • Use the selected return period.
  • Keep the original Flipkart tax report with Sales Report sheet.
  • Add Flipkart GSTIN mappings before import.

Steps

  1. 1Open GSTR-1 > Import Data.
  2. 2Select Flipkart.
  3. 3Open Mappings and verify supplier GSTIN mappings.
  4. 4Upload the Tax Report.
  5. 5Click Import and wait for job completion.
  6. 6Review Flipkart rows in MIS Summary and Sales Table.

Notes

  • Cash Back Report is used when present in the workbook.
  • Returns and cancellations are converted into GST document types.
  • Buyer GSTIN drives B2B classification.

Activity Guides

Short instructions for common actions inside the application.

E-com GSTIN Mapping

Map each supplier GSTIN to the marketplace e-commerce GSTIN before imports.

  • Required for Flipkart, Amazon, and Meesho.
  • Open Import Data, select a platform, then click Mappings.
  • Add Supplier GSTIN and E-com GSTIN in uppercase.
  • If an upload reports missing mappings, add the listed supplier GSTINs and import again.

Import Jobs

Track processing status, row counts, and delete incorrect uploads.

  • Processing means the file has been accepted and rows are being written.
  • Done means records are available in View Data.
  • Failed means the file, mapping, or template columns need correction.
  • Deleting an import removes the records created by that import job.

View Data

Use MIS Summary and Sales Table to verify return readiness.

  • Compare invoice count, taxable value, GST, and platform totals.
  • Filter by supplier GSTIN when multiple GSTINs exist.
  • Edit cells inline or open Edit Record for detailed corrections.
  • Use Insert for missing direct entries or late corrections.

Generate JSON

Create and download the portal-ready GSTR-1 JSON for the selected GSTIN.

  • Select supplier GSTIN before opening Create Return.
  • Review the Portal Summary Preview.
  • Generate JSON only after import and validation review.
  • Regenerate JSON after every data correction.

Other Sales Template

Use the direct sales template when data is already available in sales register format.

supplier_gstin
invoice_no
invoice_date
document_type
supply_type
place_of_supply
item_no
hsn_sac
uqc
quantity
taxable_value
invoice_amount

Important

Download the template from Import Data. Keep column names unchanged, fill required fields, then upload it under Other Sales.

Get template

Validation Guidelines

Rules checked when records are imported, edited, or inserted.

Review before JSON generation

  • Supplier GSTIN and E-com GSTIN must be 15 alphanumeric characters.
  • Invoice number, invoice date, document type, supply type, place of supply, HSN/SAC, UQC, quantity, taxable value, and invoice amount are required for filing-ready rows.
  • Place of supply must be a two digit GST state code.
  • Inter-state supplies require IGST rate and amount.
  • Intra-state supplies require CGST and SGST rates or amounts.
  • Regenerate JSON after correcting imported or manually inserted records.

Support Contact

Reach out for help with setup, imports, mappings, or filing workflow.

Email

support@aberrantai.com

Contact

9723081008

Common Issues and Fixes

Resolve the upload and validation blockers users hit most often.