Why Are Cards Not Removed Even After the Campaign Expiry?

Problem

Cards are retained even after the campaign expiry. They should ideally be removed after the campaign expiry.

Solution

The default value for card expiry is 30 days after the card is delivered to the user's inbox. To remove cards before 30 days, you can configure the card expiry details using the following ways:

At a date and time. All cards will expire on this specific date, regardless of when different users received them. After a card is sent, if a user has not opened the inbox even once until this expiry date, that user will never see this card.
Days after the user has seen the card. You can define the number of days for which the card will remain active in the inbox after the user sees a particular card, that is, after the impression happened. The maximum limit for this field is 180 days.
Days after the card has been delivered to inbox. You can define the number of days for which the card will remain active in the inbox after the card is delivered to the app inbox. The maximum limit for this field is 180 days.

For more information, refer to Create a Card Campaign.