The delay that is displayed in the device messages view for a given message is the elapsed time between the base station receiving the message and the message being delivered on the Sigfox cloud.
The delay that is displayed in the callback status window is the elapsed time between the base station receiving the message and the callback being triggered. Though data callbacks are almost instant, data advanced callbacks are triggered after approximately 30 seconds.
High delay root-cause
A high device message delay might be observed if the device is covered by a single base station and the latter has a temporary connectivity issue. Please contract your local Operator for further assistance.