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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>
28 lines
1.9 KiB
Markdown
28 lines
1.9 KiB
Markdown
---
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bc-version: [22..]
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domain: data-modeling
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keywords: [no-series, getnextno, ismanual, noseriesmanagement, obsolete-pending, testmanual]
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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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# Assign numbers with codeunit `"No. Series"`, not the obsolete `NoSeriesManagement`
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## Description
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Since 2023 release wave 1 (v22) the number-series API is codeunit **310** `"No. Series"`, called by name in AL. Its methods include `GetNextNo`, `PeekNextNo`, `IsManual`, `TestManual`, and `LookupRelatedNoSeries`. The older codeunit **396** `NoSeriesManagement` and its `InitSeries` / `SelectSeries` / `SetSeries` / `TestManual` methods are marked obsolete-pending: they still compile but raise a deprecation warning and are scheduled for removal, so they must not appear in new code.
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LLMs reproduce the legacy `NoSeriesManagement` pattern because it dominates pre-2023 training data. Prefer the new codeunit: it has a cleaner surface and is the only version that survives the deprecation. (The numbers matter — `310` is the current codeunit; `396` is the legacy one being retired.) Verify signatures on learn.microsoft.com or in the `microsoft/BCApps` source before use.
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## Best Practice
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`OnInsert` assigns the number with `NoSeries.GetNextNo("No. Series")` where `NoSeries` is `Codeunit "No. Series"`. The `No.` field's `OnValidate` guards manual entry by calling `NoSeries.IsManual(...)` (or `TestManual`) before clearing `No. Series`.
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See sample: [`use-no-series-codeunit-not-noseriesmanagement.good.al`](use-no-series-codeunit-not-noseriesmanagement.good.al).
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## Anti Pattern
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`NoSeriesMgt.InitSeries(...)` for assignment and `NoSeriesMgt.TestManual(...)` for the manual check, where `NoSeriesMgt` is `Codeunit NoSeriesManagement`. Both are obsolete-pending and emit compiler warnings.
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See sample: [`use-no-series-codeunit-not-noseriesmanagement.bad.al`](use-no-series-codeunit-not-noseriesmanagement.bad.al).
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