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Error Codes If an error code starting with APIGW is returned after you call an API, rectify the fault by referring to the instructions provided in API Gateway Error Codes.
The server acting as a gateway or proxy receives an invalid response from a remote server. 503 ServiceUnavailable The requested service is invalid.
IAM) EventGrid (EG) Huawei Cloud Ubiquitous Cloud Native Service (UCS) Scalable File Service (SFS) CloudIDE Face Recognition Service (FRS) Cloud Service Engine (CSE) Direct Connect Data Lake Visualization (DLV) NAT Gateway Workspace IoT Device Access (IoTDA) Distributed Message Service