Hi Ashton, I submitted a response to test your form and it worked well without any issues. Please check and confirm if you are still getting any errors. Note: Summary settings page allows you to select the relevant fields from the form for the Amount, Discount, Tax, Delivery Fee, Tip, Net amount option. The mapping in the Summary settings allows Neartail to identify the field with the amount to be charged and pass this amount to the selected payment option such as Stripe, Paypal etc and also show the order summary. If you have mapped a field for the Net amount option, the answer for that field will be passed to the selected payment option. Otherwise, the answer for the field mapped for the Amount option will be passed to the selected payment option. If the fields are not mapped correctly in the form, it will show the invalid amount configuration error. Login to Neartail > click on the to open it > Edit page will be displayed > In the Neartail Edit page, click on the form title to select it > click on the gear icon next to the form title > Form settings page will be displayed > click on the configure key fields icon next to the Save button in the bottom right corner > Summary settings page will be displayed > select the relevant field for the Amount option and click Save.