This message (and its variants All available pickups for this day are full. Try delivery. / All available deliveries for this day are full. Try Pickup.) appears when your store has a daily order cap configured separately for pickup and delivery orders, one value per weekday, and that day's cap has already been reached. Sprwt counts how many orders are already booked with that shipping method for the selected date and compares it against the configured maximum for that weekday. This check only runs when your store uses date-based delivery scheduling.

In the current version there is no page in Delivery Settings (or Client Config) where you can set this cap yourself — it is a hidden, per-weekday value that must be set up for you by Sprwt support. If customers are hitting this limit unexpectedly, contact support to review or raise the cap, or to confirm it is not set at all.