> ## Documentation Index
> Fetch the complete documentation index at: https://plain-docs-orca-916-agent-docs-restructure.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# updateTier

> Updates the name, color, external ID, default priority, or default flag of an existing tier. Only the fields you provide are changed. Requires the `tier:update` permission.