Message methods can be used to obtained granular and detailed information on push actions, which are batches of messages in which campaigns are sent (some will have just a single batch, and others can be split in different batches).

See below for a brief description of the available API message methods:

Message info: Get info on a single push notification action.
Message list push: Get info on push actions related to campaigns.
Message list push devices: Get detailed information of the push actions sent to individual devices.