How do I let a member take something now and pay later?

Path: Settings › Shop › Sales and tabs.

Open tabs are allowed by default. Switch it off and Add to tab stops working everywhere: at the till, on the member file, and in the member space. Existing tabs are not deleted, you can still cash them in.

Path: Members › a member › Shop tab card › Add.

Starting from the member's own file is the fastest way: the person is already set and Add to tab is already selected. From the till, choose Member, pick the person, then switch the payment to Add to tab.

A tab only exists for a member. There is no tab for a visitor.

On the Shop page, an Open tabs band appears above the catalogue as soon as someone owes money: one card per member, sorted by the largest amount, with a link to their file.

On the member's file, the Shop tab card lists each unpaid purchase with its total. In the member space, the member sees their own tab amount, and with Stripe connected a Pay tab button.

Press Cash in on the member's card. A window shows the amount due and lets you pick how they are paying, starting on your default shop method. Confirming marks every unpaid shop purchase of that member as paid.

The Settle tab button on the member's file does the same thing without asking for a method: each line keeps the method it was recorded with.

Cancel tab sits at the bottom left of the same window. Use it when the tab was a mistake, or when you are writing the debt off.

Money on a tab is not revenue yet. The Sales tab of the Shop page splits this clearly: Revenue counts what has been paid, On tab counts what is still owed. The Accounting tab follows the same rule.

So a strong week that is all on tabs shows a weak profit until people pay.