Accept Donations at Checkout
Enable customers who buy tickets online to add a donation to their order.
Go to Settings > Theater Setup > Sales and scroll down to Donations:
Donation Notification Email: Email address that receives a notification when an order includes a donation. Leave blank to disable notifications.
Enable donations at ticket checkout: Check this box to enable accepting donations at web ticket checkout. Required.
Donation Amount Options: Set the default donation amount(s) that the customer can choose to add to their order. You can specify a single number for a checkbox with a specific donation amount, or multiple amounts separated by commas (ie, 3,5,7) which will then be available for selection at checkout, next to a freeform entry field that allows the customer to specify any amount. Do not use the $ symbol in this field. Required.

Donation Prompt Text: Enter the text that will display alongside the donation checkbox, i.e. "Yes, I'd like to make a donation to support this cinema!" Required.
Reporting: Please see our article on the Donations report.
Donations at Checkout for Annual Memberships
If your site has annual memberships enabled, you can accept donations with both new signups and membership renewal payments.
To enable this feature in your admin, navigate to Settings > Theater Setup > Memberships and scroll down to the Donations section. Select the checkbox next to Enable donations on the memberships checkout? and then select the Save Changes button at the bottom of the page to enable. Fields for Donation amount and Text to display on checkout function in the same way as the identically titled fields described above. All fields are required for feature to appear on checkout.