Checks > Checklist > Before funding
The four checks that stand between your wallet and an order, covering coin choice, custody, the deposit address and the amount actually sent.
These four stand between your wallet and an order, and they divide into one decision and three mechanical errors. The decision is which coin settles the payment, which is here because it is the only choice on this site whose consequences are permanent. Everything else is either reversible or fades. A public ledger entry does neither.
The other three are the mistakes that actually happen. Sending straight from where the coin was bought, which draws a line nobody needs. Reusing a deposit address from a previous order, which sends real money to the right market and the wrong place. And letting the wallet deduct the network fee rather than add it, which underfunds an order by an amount smaller than the price rounding and produces a support case out of a setting.
None of the three is a judgement call. They are configuration and habit, which means they are worth fixing once rather than remembering each time.
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