I would like to suggest additional SMS possibilities when using webhooks. Currently, there are only four SMS message possibilities triggered when using webhooks (Borrowing Activity Letter, Fulfillment Cancel Request Letter, Loan Status Notice, and On Hold Shelf Letter). Others that would be very helpful to include with webhooks are:

Courtesy Letter, sent to patrons before their items are due

Ful Overdue and Lost Loan Notification Letter, sent to patrons after their items have become overdue