At production execution of a Twilio Notify Direct offer, its defined content is sent to the Twilio Notification Hub for dissemination to recipients within the current audience with appropriate identities and/or tags.
Overridden content can be substituted if applicable. For non-SMS devices that are offline, Twilio will attempt to resend the notification within the timeframe defined by the offer's Notification lifetime property. Also for non-SMS devices, if High priority is checked at the offer, Twilio will send the notification immediately.
Note that batch send is capped at 20 identities or 5 tags in one single call. Calls to Twilio are made in in batches including a maximum of 20 identities or 5 tags, even if a shared message is to be sent to a greater number of recipients.