User able to donate minimum amount then custom minimum amount with multi level donation form

[ravinderk]

User case: If custom amount is set to larger amount then minimum amount in multi donation form.

In this case user can donate minimum amount then custom minimum amount ( minimum amount should be present in multi level donation values), for other amount values we will get error.

My questions

1. Is it necessary to give custom minimum amount setting to user?
2. Can we set minimum amount to minimum amount in multi level donation form?

[mathetos]

@ravinderk

I duplicated this issue with multi-level forms with a custom amount and custom minimum.

I think the intended behavior for the "Custom minimum Amount" field is to enforce that minimum, so that donors cannot give less than that amount at all.

So to your questions:

1. Yes, because organizations get charged by the payment gateway for every transaction enforcing a minimum helps them reduce their fees. For example, PayPal charges 2.9% plus $0.30 per transaction. If a donor gives $1, the Org gets only $0.67 which means they lose 31% of that donation to fees. But if that same donor gave at least $10 then they only lose 6% per $10 transaction.

Secondly, thieves who steal Credit Card numbers often look for payment forms that they can test credit card numbers on. They'll use a form that allows for $1 donations and make a payment over and over with different numbers to test them. These are essentially "spam donations". Enforcing a minimum helps prevent those from happening.

2. We should be able to, but clearly you've discovered a new bug. Thanks for reporting this!