Payment form without set amount

Hi,

I have a client that wants to collect payment via a payment form but there is no set amount, it will vary from sale to sale based upon a physical invoice he gives them, the aim from there is for them to simply visit their site, fill out their details and amount to be paid and submit, can this be achieved and if so please advise how?

Thanks.

This is possible by selecting "Collect Donations/Custom Amount Payments" in the payment wizard. This is the 2nd screen you'll see after entering your payment credentials. You can leave the Suggested Amount blank but you need to enter a Payment Purpose that will serve as a sub-label.

Here's how it'll looks like:

Related guide: Setting-Up-Your-First-Order-Form

If you have any questions, let us know. Thank you.