For every purchase we contribute 5% of sales value to conservation projects. We want to send an email every so often that tells each customer what their total contribution to these projects is.
Subsequently, within the email we need to sum the customer’s total order value across all purchases they’ve made (and then multiply it by 0.05 - this part we can do)
I have not been able to find a way to accomplish this. If someone could advise, it would be greatly appreciated. Thanks in advance.