API Overview

The OSM open APIs to partners who operate HUAWEI CLOUD services so that the partners' systems can submit service tickets to HUAWEI CLOUD after-sales service team who can assist them in solving problems.

**Table 1** OSM APIs
Type	Description
Querying Service Ticket Category List	When submitting a service ticket, users can select the product type related to their problem.
Querying Problem Type List	Users can select the problem type when creating a service ticket.
Querying Problem Type Template	When submitting a service ticket, users need to enter the required information based on a template.
Querying Problem Severity List	When submitting a service ticket, users who have purchased a support plan can query the problem severity based on the support plan level.
Querying Region List	When submitting a service ticket, users can select the region.
Creating a Service Ticket	Users can submit a service ticket when encountering problems or in need of help during use of HUAWEI CLOUD products.
Querying Service Ticket List Interface	Users query the list of submitted HUAWEI CLOUD service tickets.
Querying Service Ticket Details	Users query details of a submitted HUAWEI CLOUD service ticket.
Uploading an Attachment	Users can upload attachments such as screenshots when submitting a service ticket.
Downloading an Attachment	Users can download and view the uploaded attachments in the service ticket details.
Delete an Attachment	Before creating a service ticket or adding a message, users can delete the attachments that are incorrectly uploaded and upload new attachments.
Submitting a Message	Users can add messages on the service ticket details page, for example, adding confidential information, providing information required for the customer service to handle the problem, or asking about the service ticket handling progress.
Querying Messages	Users can query messages on the ticket details page.
Service Ticket Satisfaction Category List	When a user closes a service ticket, satisfaction metrics are displayed for service evaluation.
Submitting Score	After the service ticket processing is complete, users can evaluate the service and submit comments.
Service Ticket Operations	Users can perform some operations on service tickets, such as urging, deleting, closing, and canceling service tickets.