Hey there @PPJT. This is an ongoing issue with Square and it is even bigger than your particular situation. Hopefully, a Square Moderator can direct you to some feature requests about this so that you can weigh in on those. But, so far, there is no resolution to it.
At this point all you can do is either accept tips only in cash, or you can create a new item in your library for manual tips. In this case, you’d leave the price blank when you create the item, which makes it a variable priced item. Then whoever checks out the customer can ask if they’d like to leave a tip and they could enter that amount before swiping the card. Note that if you also use Square Payroll, however, these manual tips would not be automatically imported into your weekly payroll. You’d have to manually add them to team payroll records when you process it. No, it’s not ideal, but it works.
