IncorrectPartialFillAmount

The partial_fill amount is zero or exceeds the order's remaining unfilled amount, or a full execution was submitted against an order already partially filled. Compare partial_fill with order.amount minus the filled amount recorded in Orders.

Declared by the LimitOrders pallet; it classifies to the semantic code invalid_argument.

Remediation

Check the argument values against the operation schema

The same explanation is available in the terminal: btcli explain IncorrectPartialFillAmount.