AI Builder form processing is licensed based on page volume, not number of documents. It consumes 1 credit per 1,000 pages processed.
For your scenario — 2,000 invoices per month (assuming 1 page each) — you’ll need 2 AI Builder credits per month. At the standard rate of $500 per credit, that’s an estimated $1,000/month.
If your invoices are multi-page, multiply accordingly (e.g., 2 pages per invoice = 4 credits/month). You can track usage and manage capacity in the Power Platform Admin Center under Capacity > AI Builder.
This pricing model applies regardless of whether the automation is built with premium connectors or standard connectors.