How to correctly understand the "delivery rate" of message push service

delivery rate is divided into "online delivery rate" and "general delivery rate":

online delivery rate: it refers to the proportion of messages delivered to devices that are online for a long time (note that the definition only refers to delivery to devices, not to App). Online delivery rate = number of delivered devices (39.5W)/number of delivered devices (4W)

General delivery rate: refers to the proportion of devices that have been successfully delivered to the App (note that the definition refers to delivery to the App, not devices). Universal delivery rate = number of delivered apps (35W)/number of received apps (99W).

messages sent by developers will have a certain validity period (for example, the validity period of news apps is generally short, while the validity period of some announcements may be longer). During the validity period of messages, if devices are still online, messages will continue to be distributed, and the number of devices delivered and the number of apps delivered will continue to increase until the validity period of messages expires.

The life cycle of the current sending task is over, so the message will not be distributed again, which will not affect the "online delivery rate", but the "universal delivery rate" will continue to increase during the validity period of the message until the message expires. Assuming that the message finally reaches the device with 55W and the App with 5W, the final "universal delivery rate" should be 5W/99W.

when the App is integrated with the push SDK, the general delivery rate will be very high in the push background, and then it will be found that the general delivery rate will gradually decrease with the increase of time until it finally stabilizes at a value. This shows that the universal delivery rate has a great relationship with the activity of the App < P > However, more information about the push service can be learned through Shenzhen Aurora Company. Aurora push developer service product line has added three products: Aurora SMS (JMessage), Aurora Statistics (JAnalytics) and Aurora Share (JShare). In the field of data services, financial risk control services, customer insight services and industry research services were carried out, and the mobile application monitoring platform "Aurora iAPP" was launched.