I work at a nonprofit and would like to start selling apparel on our main Wix site using Wix Store. On our typical donation site, there is an option to round up your total to cover processing fees so more of your donation goes to the organization. I would like to do the same in our Wix Store at checkout. Check the box to round up or to add $1. It seems the only way to do this is with coding, which I know very minimally. Is there a code I can copy and paste somewhere to make this happen? Thank you!!
It sounds like this would be a good use case for the additional fees SPI
Docs: https://www.wix.com/velo/reference/spis/getting-started/ecommerce-additional-fees
And here is some code I used to demo this functionality for reference: https://github.com/amandamartin-dev/fees-spi-demo