Cause

The customer's card expires before the deposit's securing window end (plus the validity margin) — it cannot be used to secure this deposit.

Partner action

Ask the customer for a card with a later expiry date, or reduce the deposit's securing duration. See error.requiredValidUntilLabel for the minimum valid-until date.

Gando action (internal)

Check CardExpiresTooSoonError and rejectIfCardExpiresTooSoon() in the securing-fee charge flow.