Transactions can be simulated using a sandbox environment provided by the acquirer. Validates various payment methods, error handling and security protocols to ensure seamless integration and functionality.

esting payment acquirer credentials can be done by using a test environmentt provided by the payment gateway. 

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1. Enable online payment in Settings.

2. Install payment acquirer.

3. Set State to "test mode" and enter credentials.

4. In Configuration tab, choose "Payment from Odoo" as payment flow.

5. Test by creating a Sales Order, Invoice, and previewing the invoice. 

6. For Sales Order: Create, generate Invoice, and select "Pay Now" in Test Mode.

7. Use Credit Card (powered by Authorize) in Test Mode.