🧾 Create a Sales Invoice in ERPNext

Follow these steps in ERPNext to prepare a compliant invoice:

1. Select Customer
   o Make sure this customer is linked with a valid ETA Issuer Type and Tax ID.
   o 📅 Important: The invoice date must be set to today.
2. Select a Item
   o Choose an item that is correctly mapped to an ETA Item Code.
3. Select Sales Taxes and Charges Template
   o Select the correct template containing the ETA Tax Type and ETA Tax Sub Type.
4. (Optional) Add “ETA More Details”
   o Input any additional metadata required by ETA standards (e.g., delivery date, reference number).