Minimum payout is {amount}
Payout create returned 400 with Minimum payout is {amount}. ({amount} is the formatted site minimum).
Why this happens
Requested amount is below Minimum payout amount in Affiliation/payout settings. Distinct from exceeding available earnings.
Diagnose and fix
1. Raise the request to at least the shown minimum (or wait until earnings reach it).
2. Admin: lower the minimum in settings if the threshold is too high for members.
3. See Enter a valid amount for format issues.
4. See Request a payout.