---
title: "3.3 Sales Workflow"
space: "Zambia Compliance Via Digitax"
url: "https://docs.navari.co.ke/zambia-compliance-via-digitax/core-workflows/33-sales-workflow"
updated: "2026-05-17"
---

When  a Sales Invoice is submitted in ERPNext, it is automatically picked in  the background and transmitted to ZRA SIS, provided that auto  submission is enabled in SIS Settings. This applies to both normal  Sales Invoices and Sales Invoice Returns (credit notes). The process  runs asynchronously to avoid blocking the user workflow, ensuring smooth  invoice processing in ERPNext

![](/files/Sales Workflow.webm)







Once successfully processed, SIS returns compliance data including a  QR code and official reference details. These are automatically stored  against the Sales Invoice or Credit Note and used for compliant printing  and reporting.

If the submission fails, the document remains available in ERPNext  with the relevant error details. Users can then review the issue and  retry submission or perform a manual submission using the available  SIS actions on the transaction.