Clients can't pay through emailed invoice?

[Dra-Chicago]

Have two clients that are trying to complete transactions through generated invoice sent to them through email, but are unsuccessful?

[AdamB]

Welcome to Seller Community and thank you for your post, @Dra-Chicago.

Do you have any other information from your clients on what happens when they try to pay? Do they get an error message or have trouble loading the payment form?