bcquality/microsoft/knowledge/style/label-locked-for-non-translatable.md
Jesper Schulz-Wedde 2b5550c346
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Improve partner onboarding and documentation navigation (#174)
Lead with a complete plugin quick start and add task-oriented usage, troubleshooting, customization, and contribution guides. Preserve the broader plugin framing, correct conflicting contract guidance, support Agents folder reviews, and align repository validation. Convert existing sample references to clickable links without changing knowledge rules.

Co-authored-by: Jesper Schulz-Wedde <jesper.schulzwedde@microsoft.com>
Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
2026-09-09 17:31:03 +02:00

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---
bc-version: [all]
domain: style
keywords: [label, locked, translation, token, url, json, xml]
technologies: [al]
countries: [w1]
application-area: [all]
---
# Set `Locked = true` on Labels that must not be translated
## Description
A `Label` is by default surfaced to translators and rewritten per locale. That is wrong for strings that are not natural language: HTTP verbs (`GET`, `PUT`), URL fragments, JSON/XML snippets, content-type strings, GUIDs, application keys, and field tokens used by integrations. Translating these breaks the integration the moment a non-English tenant runs the code. The `Locked = true` parameter on the Label declaration tells the translation pipeline to keep the string verbatim, and signals to reviewers that the value is part of a wire-level contract rather than display text.
## Best Practice
Pair `Locked = true` with the `Tok` suffix for short tokens (`GetMethodTok: Label 'GET', Locked = true;`) and with the `Txt` suffix for telemetry strings that contain format placeholders but should not be localized. The `Locked` parameter and the `Tok` / `Txt` suffix together make the intent unambiguous.
See sample: [`label-locked-for-non-translatable.good.al`](label-locked-for-non-translatable.good.al).
## Anti Pattern
`HttpsUrl: Label 'https://example.com';` or `ContentTypeTok: Label 'application/json';` declared without `Locked = true`. The translator localizes them, the integration fails in production for the affected tenant, and the failure is invisible in the developer's English-locale tests.
See sample: [`label-locked-for-non-translatable.bad.al`](label-locked-for-non-translatable.bad.al).