# Importing Sales Register: Overview

Octa needs your **sales register** data from your ERP (or accounting software) to help you with GST return preparation,
reconciliation, and other compliance tasks.

You can import sales data in two main ways:

- **Document level** (individual invoices/credit-debit notes): Octa automatically creates all required summaries and
  reports for you.
- **Summary level** (totals already calculated): Use this if your ERP already gives you ready-made summaries.

> **Warning:** You can mix both methods or import from multiple sources — that's completely fine! **But never import the same
> transaction twice** (once as document + once as summary). This causes double counting of liability and creates
> problems in your returns.

### Supported Import Formats

Pick the format that matches your data source. You can use one or combine multiple formats to cover all your sales.

| Format                                                                         | Best to use when…                                                                                                                                            |
| ------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| [**Amazon Format**](/octa/docs/app/importing-sales-register/amazon-format)     | You sell on Amazon and want to import the Monthly Tax Report (MTR) Excel file generated from Amazon Seller Central                                           |
| [**Flipkart Format**](/octa/docs/app/importing-sales-register/flipkart-format) | You sell on Flipkart and want to import the Excel file from the Flipkart Marketplace Portal                                                                  |
| [**Meesho Format**](/octa/docs/app/importing-sales-register/meesho-format)     | You sell on Meesho and want to import the Excel file from the Meesho Supplier Portal                                                                         |
| [**GSTR-1 Format**](/octa/docs/app/importing-sales-register/gstr1-format)      | Use this if your ERP can export data in the official GSTR-1 format                                                                                           |
| [**Octa Format**](/octa/docs/app/importing-sales-register/octa-format)         | **Recommended** when none of the above formats match — simple & flexible template provided by us — even supports multiple company GSTINs in one single file! |

> **Tip:** **Need a custom format?** If your ERP uses a unique format, don't worry! We can build a **custom connector** for you.
> Just export from your ERP and import directly into Octa — no manual changes needed. Interested? Raise a support ticket
> and our team will get in touch.

### How to Import Your Sales Data

1. Open your company in Octa
2. Go to the **Sales** page
3. Click the **Import** button
4. Choose the correct format from the list
5. Upload your Excel or CSV file
6. Add any required extra info (only for some format)
   - Your company's GSTIN
   - Return period/month
   - Type of sales — B2B, B2C, exports, etc.
7. Click **Continue** and follow the simple on-screen instructions

That's it! The import usually takes less than a minute.

### Importing Data from Multiple Sources

- Do you have sales from different platforms (Amazon + Flipkart + your website + offline)?
- Do you have multiple branches with separate accounting or ERP systems?

No issue — simply repeat the import steps for each source. Use a different format each time if needed. Octa smartly
combines everything into one clean, consolidated view for your GSTIN.

### What if There Are Errors?

Before adding your data, Octa automatically checks it against:

- File format rules
- GST compliance rules

If something doesn't look right, you'll see a clear error list with:

- Exact row/line numbers
- Simple explanation of what needs fixing

**How to fix?**

- Open your original file
- Correct the highlighted issues
- Save the file
- Upload the updated file again

Octa won't import anything until all errors are fixed. Repeat until all errors are cleared — then your data will import
successfully!