Question

I am new to making a payment gate way and require restricting purchases between a predefined minimum and maximum. I searched Google, finding this as the most useful result. Is there a way to accomplish this?

Answer 1

You can set the maximum with MAXAMT – read more

However there is no option to set the minimum with Paypal. But you can write a simple JS that checks on submit the form field value and throws an error if the amount is less than expected:

function checkMinimum() {
    var min = 5;
    if( parseFloat( document.formName.fieldName.value ) < min ) {
        alert("Minimum amount should be not less than $" + min + ". Spend more.");
        return false;
    }
    return true;
}