Help Center/ Application Performance Management/ Service Overview（2.0）/ Metric Overview/ App/ Error Collection

Updated on 2025-11-19 GMT+08:00

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Error Collection

AppError is a collector to collect error monitoring information. The information includes the categories, names, descriptions, units, data types, and default aggregation modes of metrics.

**Table 1** Error collection metrics (AppError)
Category	Metric	Name	Description	Unit	Data Type	Default Aggregation Mode
Network error metric set (NetworkError)	total	Total Network Errors	Total number of network errors	-	INT	SUM
Network error metric set (NetworkError)	deviceCount	Total Devices with Errors	Total number of devices that encounter errors	-	INT	SUM

Parent topic: App

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