> ## Documentation Index
> Fetch the complete documentation index at: https://www.aiaccountant.com/help/llms.txt
> Use this file to discover all available pages before exploring further.

# Sync invoices to Tally

> Push created invoices into your Tally company and confirm the sales voucher.

Invoices stay in AI Accountant until you sync. Syncing writes them to your connected Tally company as sales vouchers.

## Run the sync

1. Open **Sales** and go to the **All Invoices** tab.
2. Click **Sync** at the top right.

Every unsynced invoice goes across, not only the one you just created. A short "Syncing to..." message appears while it runs.

## Confirm it worked

* The **Voucher Number** is assigned, if your Tally voucher type uses automatic numbering.
* A cloud icon appears next to the row.
* Opening the invoice shows the status **Synced to Tally on \[date]**.

## Check the voucher in Tally

Open your Tally company and locate the sales voucher. The customer name, item, rate, GST, and reference match the values entered in AI Accountant. Nothing needs re-keying.

For a batch created from Excel, open **Day Book** in Tally to see the whole batch together.

## Voucher numbering

| Your Tally setting  | What happens                                                                                         |
| ------------------- | ---------------------------------------------------------------------------------------------------- |
| Automatic numbering | The Voucher / Invoice Number field is locked and stays blank until you sync, then Tally fills it in. |
| Manual numbering    | The number you typed on the invoice is used as is.                                                   |

## If the sync does not complete

| What you see                     | What to check                                                                                         |
| -------------------------------- | ----------------------------------------------------------------------------------------------------- |
| Voucher number still blank       | The sync has not run. Reopen All Invoices and click Sync again.                                       |
| No cloud icon on the row         | Confirm your Tally company is open and the connector is running.                                      |
| Sync fails on a specific invoice | A master used on the invoice is missing in Tally. Check the customer, sales ledger, item, and godown. |