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Improve partner onboarding and documentation navigation (#174)
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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>
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Jesper Schulz-Wedde 2026-09-09 17:31:03 +02:00 • committed by GitHub
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microsoft/knowledge/interfaces/prefer-interface-over-case-branching.md
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@ -17,10 +17,10 @@ When behaviour varies by a discrete "type" — a shipping method, a posting stra
Declare an `interface` with the method signatures only (no bodies). Define an `enum` that `implements` the interface and set `Implementation = <Interface> = <Codeunit>;` on each value, pointing at a codeunit that `implements` the same interface. In the consumer, declare a variable of the interface type, assign the enum value to it, and call the method — the platform dispatches to the codeunit mapped to that value. New variants plug in by adding an enum value and its implementation; existing call sites are untouched. The open/closed boundary lives at the enum, not scattered across `case` blocks.
See sample: `prefer-interface-over-case-branching.good.al`.
See sample: [`prefer-interface-over-case-branching.good.al`](prefer-interface-over-case-branching.good.al).
## Anti Pattern
A `case "Shipping Method" of` block that selects behaviour inline, duplicated across the call sites that need it. Each new method forces a synchronized edit to every block, and a missed branch is a silent gap. Detection signal: a `case` statement over an enum value whose branches choose between variant computations or strategies, especially when the same shape appears in more than one procedure. Replace the enum with one that `implements` an interface, move each branch body into an implementation codeunit, and let dispatch happen through an interface variable.
See sample: `prefer-interface-over-case-branching.bad.al`.
See sample: [`prefer-interface-over-case-branching.bad.al`](prefer-interface-over-case-branching.bad.al).