If you need to create a one-time payment for a customer you can use the Create Invoice feature.
Note: This feature is not yet available on our new Shopify 2020 integration. This is coming soon in early 2021.
To start click on Manage Invoices in the PayWhirl Sidebar.
Then click the Create Invoice at the top right corner.
Now select the customer and create the charge. Depending on what its for it could be a product, service or a fee.
Once you click 'Save and Continue' you will be able to schedule the charge, send it to the customer or bill them immediately.
Please let us know if you have any questions.
The PayWhirl Team