Cannot Process: Ref External Number
Scenario: If you see this screen when you are trying to process a credit card payment, you will need to follow the instructions below to fix it:

_ You will need manager/owner access for this. _
STEP 1: Click on the 3 vertical dots.

STEP 2: Click on Salon Settings

STEP 3: Enter in Password

STEP 4: Click Configuration

STEP 5: Expand the Check Out section

STEP 6: Click on radio button next to "Internal Terminal"
_ NOTE _ : _ Internal Terminal _ = this will talk to the credit card machine you have connected to the POS. _ External Terminal _ = This will only allow you to enter in the last 4 digits

STEP 7: Go back to the main screen, open your ticket, and process the credit card payment
Updated on: 01/08/2020
Thank you!