> For the complete documentation index, see [llms.txt](https://support.portsip.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.portsip.com/development-portsip/rest-apis/version-22.2/get-started/resource-id.md).

# Resource ID

Each resource has a corresponding ID, for example, `NzAwNTUxOTA5NzczMTQ4MTYw`. After successfully creating the resource, the user will receive the returned ID and must provide this ID when accessing the resource. Clients should treat this ID as an opaque string and should never attempt to assemble it. This document imposes no constraints on the format, and clients should never impose any.


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