Public error codes-Simple Message Queue (formerly MNS)(SMQ)-阿里云帮助中心

Error codes

HTTP status code	Error code	Error message	Description	Action
400	FifoNotSupport	FIFO queue or topic is not supported in this region. If you want to use FIFO queue or topic, please contact us.	The current region does not support FIFO (first in, first out) queues or topics. To use this feature, contact us.
400	InvalidTime	Please limit the time gap between StartTime and EndTime into %s hours.	Narrow the time range of the query parameters.
400	InvalidTime	Please limit the query time range into %s hours, i.e. EndTime minus StartTime.	Dynamic error codes for the DescribeRefreshTasks operation.
400	iot.dap.insight.limitedInvoke	Please check subscribe number and invoke limitation.	Check the subscription quota limit or call quota.
400	iot.device.DeviceNumberExceedInstance	Exceeds instance device number limit	The total number of devices under the instance exceeds the maximum limit.
400	iot.tsl.ThingModelNotFound	the thing model not exist.	The Thing Specification Language (TSL) module does not exist.
403	RamAuthError	action rejected by RAM.	The operation is denied by RAM.
403	ServiceNotEnable	Service not enbale.	The user has not activated the MNS service.