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Align article and AL sample conventions, keep BC facts separate from review mechanics, and clarify reciprocal Finance ownership without bespoke shared test assertions. Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
42 lines
3.7 KiB
Markdown
42 lines
3.7 KiB
Markdown
---
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bc-version: [all]
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domain: scm
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keywords: [item-ledger-entry, value-entry, item-journal-line, item-jnl-post-line, runwithcheck, inventory-posting]
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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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# Post item ledger changes through item journals
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## Description
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An item ledger entry is not an independently insertable stock balance. Posting connects its quantity to item applications, reservations, tracking, and one or more value entries; expected cost, invoicing, revaluation, and later cost adjustment can produce different value entries for the same item entry. Running a table's insert trigger does not run this posting workflow or its configured inventory-to-G/L integration.
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## Best Practice
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The posting entry point for a prepared standalone item-journal movement is `"Item Jnl.-Post Line".RunWithCheck`. Persisted journal batches use `"Item Jnl.-Post Batch"`; sales, purchase, transfer, assembly, and production transactions retain their owning document/posting orchestration. Those workflows create the ledger, value, and application records together with their required checks.
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Supported posting events enrich validated journal/source data within the owning workflow. Read-only ledger queries, temporary ledger previews, extension-owned metadata fields, and publisher parameters consumed by the poster are not independent ledger posting. A temporary item-journal buffer can still produce persistent entries when passed to a posting codeunit. A publisher's `var` parameter or `IsHandled` flag alone does not supply the missing quantity/cost coordination; the normal engine's own inserts operate within that coordination.
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Not every value entry points to an item ledger entry: capacity and production WIP have their own supported posting relationships. Assembly and manufacturing posting retain order/component/routing and capacity context; one bare output/consumption call is not full order completion.
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The clean sample takes an already prepared positive-adjustment journal line. It is not a substitute for journal preparation, batch revaluation, warehouse reconciliation, or source-document posting.
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See sample: [`post-item-ledger-changes-through-item-journals.good.al`](post-item-ledger-changes-through-item-journals.good.al).
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## Anti Pattern
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Independent inserts/deletes of persistent `"Item Ledger Entry"` or `"Value Entry"` transaction rows, or overwrites of posted quantity, remaining quantity, application identity, or cost amounts, bypass the coordinated receipt, shipment, adjustment, or cost-correction workflow. `Insert(true)`, `Modify(true)`, and balanced-looking quantities do not supply that orchestration: stock can change without the corresponding application/value graph, or downstream cost flow can remain stale.
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A table declaration or custom annotation-field update does not change inventory quantities or costs and is outside this transaction-state concern.
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See sample: [`post-item-ledger-changes-through-item-journals.bad.al`](post-item-ledger-changes-through-item-journals.bad.al).
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## References
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- [Inventory posting design](https://learn.microsoft.com/en-us/dynamics365/business-central/design-details-inventory-posting)
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- [Item application design](https://learn.microsoft.com/en-us/dynamics365/business-central/design-details-item-application)
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- [BaseApp item-journal posting entry point](https://github.com/microsoft/BCApps/blob/8f7a04cb0db8aa96cb97e055c45c61aead49e280/src/Layers/W1/BaseApp/Inventory/Posting/ItemJnlPostLine.Codeunit.al#L162-L179)
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- [Assembly-order posting context](https://learn.microsoft.com/en-us/dynamics365/business-central/design-details-assembly-order-posting)
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- [Production-order posting context](https://learn.microsoft.com/en-us/dynamics365/business-central/design-details-production-order-posting)
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