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From an avoided double redirect: This is a redirect from an alternative title or related topic of Mission-essential functionsMission-essential functions, another redirect to the same title. Because double redirects are disallowed, both pages currently point to Mission critical.
- If Mission-essential functionsMission-essential functions is retargeted or is expanded into a separate article, template, or other project page, this redirect will be recategorized to be updated.

To its plural form: This is a redirect from a singular noun to its plural form.
- Redirects of this sort exist for reader convenience in cases of singular–plural pairs. It is also used for "false singulars", wherein the plural or plural-looking form is better attested in usage, such that the normal "prefer the singular" Wikipedia naming convention is not followed. Examples:
  - ScissorScissorScissors
  - TrouserTrouserTrousers
- Use this rcat to tag qualified mainspace redirects only; if qualified singular forms are found in other namespaces, use {{R from modification}} instead.

When appropriate, protection levels are automatically sensed, described and categorized.

Mission-essential function