1. Go to Settings › Center settings › In-app settings.
  2. Click Connect with Redsys. A window guides you through four steps:
    1. Find the terminal in Redsys. Log in to your Redsys administration area.
    2. Enter the merchant and terminal. Fill in the Merchant code (FUC) and the Terminal, and choose the Environment: test or live.
    3. Copy the signing key. Paste it into Signing key.
    4. Save and verify. Click Save changes and then Verify configuration.

Important: the signing key must match the environment you chose. A test key won't work in the live environment.

To stop using Redsys, click Disconnect payment provider.