1. Install
Download the free plugin, then in WordPress go to Plugins → Add New → Upload Plugin, choose the zip and activate. WooCommerce must be active.
2. Business details
Open Orbit GST → Settings → Business. Enter your legal name, GSTIN (your state is filled in from it), address, logo and signature. Choose the invoice prefix and numbering format, for example INV/{fy_short}/{seq}.
3. Tax setup
On the Tax setup tab click “Set up WooCommerce GST rates”. It creates GST tax classes with CGST + SGST rows for your state and IGST for other states. Then set HSN/SAC and GST rate on each product (or on the category), and click “Assign tax class from GST rate”.
4. Invoices
Invoices are created when an order becomes Processing (or Completed, your choice) and attached to the order emails. Refunds create credit notes. All documents are listed under Orbit GST → Invoices.
5. Activate Pro
Download Orbit GST & Billing Pro from My account → Licences & downloads, upload and activate it, then paste your licence key under Orbit GST → Licence. To move a licence, deactivate it there or from My account on this site.
6. Tally
Orbit GST → Tally: first export Masters and import them in TallyPrime (Import → Masters), then export Vouchers for the month and import them (Import → Transactions). Check ledger names on the Mapping tab so they match your Tally company.
7. GST returns
Orbit GST → GST Returns: pick the month, fix anything in the validation panel, then download the GSTR-1 JSON and upload it in the GST portal offline tool. The GSTR-3B tab shows the figures for tables 3.1, 3.2 and 4.