# Test documents and the simulated ASP

> Try the full invoicing flow safely with test documents and the simulated Taxilla mode, then reset and go live.

Source: /help/en/invoices/test-documents

Alya Books offers two ways to practise without affecting your books or the FTA: a per-document **Test document** flag, and an organization-wide **Test (simulated)** e-invoicing mode in which nothing leaves the app.

## Mark a document as a test

1. In the editor's right panel, under **General settings**, switch on **Test document**.
2. A **TEST** badge appears in the header, on the paper and in the invoice list.
3. Test documents are never counted in the dashboard, the list statistics, **Analytics** or **Compliance**. Use the **Test** chip on **Invoices** to find them.

## Simulate submissions

1. Go to **Settings → E-invoicing** and choose **Test (simulated)**.
2. Pick a **Test scenario**: Always accept, Slow processing, Rejected by Taxilla, Rejected by buyer or Rejected by FTA.
3. Save. The banner on **Invoices** and in the editor now reads "Test mode".
4. Validate and submit an invoice as usual. The **E-invoicing Submissions** card shows a TEST badge, the scenario, and the timeline behaving as chosen: for example, "Slow processing" advances one step per status check, and "Rejected by Taxilla" returns a sample BR-AE error.
5. Sample downloads (Taxilla PDF, XML, JSON report, MLS files) are marked as mock content.

## Reset a test submission

Invoices submitted in test mode are locked like real ones. To edit or resubmit one, click **Reset test submission** on the **E-invoicing Submissions** card. The test submissions are deleted and the invoice returns to **Validated**. This is only possible because nothing was sent to Taxilla.

Good to know:

- The test flag and the test mode are independent: you can submit a real document in test mode, or a test document in Live mode. Keep test documents flagged so they stay out of your reports.
- Notifications from test submissions carry a "[TEST]" suffix.
- **Duplicate** clears the test flag on the copy.
- API keys created as test keys create test invoices and list only test invoices.
- Move to **Taxilla UAT** once you have credentials from Taxilla, and to **Taxilla Live** only after UAT passes. Submit one low-value real invoice first.
- Only owners and admins can change the e-invoicing mode.

Related:

- [Submit to Taxilla and FTA reporting](/help/en/invoices/asp-submission-and-fta-reporting)
- [Correct or cancel an issued invoice](/help/en/invoices/correct-or-cancel-an-invoice)