01 Payment modes
Define offline payment methods under Office → Currency / Payment modes (Bank transfer, Cash, Check, etc.).
Staff record manual payments against invoices from the invoice detail screen.
02 Stripe
Enable Stripe for online card payments on invoices.
- Create a Stripe account and obtain publishable + secret API keys.
- Enter keys in Office payment settings (use test keys in staging).
- Clients pay open invoices from the portal or payment link.
- DevPremier CRM v3.0 uses Stripe PHP SDK v17 — use current Stripe dashboard key formats.
03 PayPal
PayPal Checkout allows clients to pay invoices online.
- Configure PayPal REST credentials in Office settings.
- Use sandbox credentials until you verify end-to-end payment flow.
- Successful payments update invoice balance in the CRM.
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