Credits are points your space hands out as a reward and lets members spend on whatever you offer in return. Each member has a balance, a list of the grants that balance came from, and a ledger of every movement. On your space's public site credits are presented to members as Mints.
Availability. Credits need a plan that includes member credits. Without it, the Credits tab doesn't appear on a member's screen at all — see Why a section is missing.
Fig 1. The Credits tab: current balance, the grants it came from, and the transaction ledger.
Current balance — what the member can still spend. It's a consequence of grants, spending and refunds; you can't write it directly, and it never goes negative.
Grants — the lots the balance came from, each with its note, its expiry date and an available / total figure. Spent, expired and cancelled grants stay in the list rather than disappearing from it.
Transactions — every movement in either direction, with a timestamp, a description and a signed amount. Positive entries are grants and refunds, negative ones are spending. A refund is written as its own entry next to the movement it reverses; nothing is ever rewritten.
Spending draws on the member's grants as a pool rather than naming one of them, so a member with three grants doesn't choose which to spend.
Grant credit takes four things: a Note saying why, a Reference, an Amount, and an Expires date.
The reference is the part worth understanding. It's a de-duplication key: a second grant made under the same reference doesn't pay the reward twice. That's what makes automated rewards safe to retry — a rule that fires again over the same contest, or a script re-run after a failure, doesn't hand out the credit a second time.
Credits are also granted without you: by automation rules, and as rewards for accepted content contributions.
Each grant expires on its own date. An expired grant stops contributing to the balance but stays in the list, so a balance can fall on its own with no transaction to explain it — the grants list is where that shows.
Cancel, from the grant's row menu, revokes a grant that shouldn't have been made and withdraws whatever it still holds from the balance. It's for mistakes: a grant of the wrong amount, or one made against the wrong member.
An ordinary correction is not a cancellation. If the member earned the credit and then used it, or you want to claw something back for a reason the member should be able to see, put it in the ledger as spending or a refund, where it stays visible. A cancelled grant is shown as revoked on the member's own credits page.
Credits are spent on the rewards your space chooses to offer in return for them. Whatever a member spends appears in the ledger as a negative transaction with its description, and takes the balance down accordingly.
Credits are separate from achievements: an achievement is a badge that stays on the profile, a credit is a balance that gets used up.