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26 lines
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962 B
Markdown
26 lines
No EOL
962 B
Markdown
---
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bc-version: [all]
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domain: appsource
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keywords: [date-literal, invariant-date, dateformula, localization, appsourcecop]
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technologies: [al]
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countries: [w1]
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application-area: [all]
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---
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# Use invariant date literals
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## Description
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Write fixed dates in AL with the invariant `yyyymmddD` syntax. A locale-dependent text value parsed with `Evaluate` can change meaning or fail under another user's regional settings, which makes the Marketplace extension unreliable across markets.
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## Best Practice
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Represent a fixed date directly as an AL date literal, such as `20250131D`. Use `CalcDate` with a date formula when the value is relative rather than fixed.
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See sample: `use-invariant-date-literals.good.al`.
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## Anti Pattern
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Building a fixed date by passing localized text such as `01/02/2025` to `Evaluate`. Detection signal: `Evaluate` converting a hard-coded or label-backed formatted string into a `Date`.
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See sample: `use-invariant-date-literals.bad.al`. |