Connecting Cayman Gateway to Givecloud
In Givecloud, go to Settings > Payment Gateway
Click the Set Up button next to 'Cayman Gateway.' (Please note the button will read Edit if you have already set up your gateway.
Complete the appropriate steps on this screen and enable your Cayman Gateway account. When asked for the API key, use the key you supplied by Caymen Gateway.
Click 'Update Information' and be sure to enable the gateway in the top right corner.