Kilian Seizinger dda13d5150 knowledge(data-modeling): cover prepayment, service line and ExclTax helper in Prices Including VAT article ... Extend the community article on sales/purchase line prices following the header's Prices Including VAT: - Group the line fields: fields that follow the header flag (Unit Price, Direct Unit Cost, Line Amount, discounts, Prepmt. Line Amount, Prepmt. Amt. Inv., Prepmt Amt to Deduct, Prepmt Amt Deducted) versus fields with a fixed basis (Amount, VAT Base Amount, Prepayment Amount are net; Amount Including VAT, Prepmt. Amt. Incl. VAT, Prepmt. Amount Inv. Incl. VAT are gross). - Add the rule to combine only fields of the same group, with BaseApp's UpdatePrepmtAmounts as the correct example. - Add the misleading-name case: CalculateOutstandingAmountExclTax on Sales Line and Purchase Line is based on Line Amount and includes VAT on a Prices Including VAT document. BaseApp pairs it only with Prepmt. Line Amount (same basis); extension code that treats it as net is wrong. - Mention that Service Line uses the same caption switch and UpdateVATAmounts split for Unit Price and Line Amount. - Samples: add GetOutstandingNetAmount (bad: trusts the helper's name; good: takes the uninvoiced share of Amount). - al-data-modeling-review: widen the scope and the worklist rule to service lines, the extra prepayment fields and CalculateOutstandingAmountExclTax, and exclude code that only combines fields of the same group. Verified against BCApps W1 BaseApp (SalesLine, PurchaseLine, ServiceLine, SalesHeader, Sales Line CaptionClass Mgmt). Refs #151		2026-10-01 12:07:39 +02:00
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knowledge	9 AL/BC patterns: document distribution, price calculation & barcode extensibility (#175)	2026-09-30 13:22:38 +02:00
skills	knowledge(data-modeling): cover prepayment, service line and ExclTax helper in Prices Including VAT article	2026-10-01 12:07:39 +02:00