Table 2.

Remote administrative data monitoring features in the PPAP app.

	Frequency	Error type	Corrective action
Heart rate
	Single day	No data	Insert null into database.
		Late upload	Extract database location from filename.
		Multiple files	Use the first file that passes quality checks.
	Three days	No data	Insert null into database and email reminder.
		Late upload	Extract database location from filename.
Activity
	Single day	No data	None.
		Late upload	Extract database location from filename and create prescription using these data.
		Multiple files	Concatenate physical activity duration data.
	Two days	Optional day	Recommend rest for optional day.
Prescription
	Single day	Optional day	Add prescription to total if file is downloaded.
	Multiple days	No download	Email notification to study administrator.
All files
	Missed 7 days	No data	Email user to identify problem source.