The following list of processors is supported by rsvpBOOK. Included with each are what credentials you will need to connect your account.
Gateway Account ID
Personal Access Token
Square Setup Detail
Log In to Square.com
Go to Apps -> My Apps
Click ‘Go to Developer Portal’
Click ‘New Application’
Enter name ‘rsvpBOOK Merchant’ and click ‘Create Application’
Click the new ‘rsvpBOK Merchant’ icon
Confirm that you are on the Production Tab, not Sandbox
Open a new email message and copy the Application ID to it
Click ‘Show’ and copy the ‘Personal Access Token’ to the email
Click ‘Locations’ in the top menu row
Copy the first Location Id to the email as well.