---
id: object/pageextension/5016
type: object
title: Page extension 5016 "SD Purch. Inv. Subform"
summary: Page extension 5016 "SD Purch. Inv. Subform" in ServiceDeclaration (Microsoft.Purchases.Document), extends "Purch. Invoice Subform". Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - pageextension
  - servicedeclaration
versions:
  introduced: "29"
  last_changed: null
  deprecated: null
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-11T00:31:51.816Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: 3ab2905e691e43647c7f3ae62866a402db7003ce4361fced4d38a5038f815105
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/ServiceDeclaration/app/src/PurchaseDocuments/SDPurchInvSubform.PageExt.al
    title: src/Apps/W1/ServiceDeclaration/app/src/PurchaseDocuments/SDPurchInvSubform.PageExt.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects:
    - object/page/55
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
object_type: pageextension
object_id: 5016
name: SD Purch. Inv. Subform
namespace: Microsoft.Purchases.Document
app: ServiceDeclaration
extends: Purch. Invoice Subform
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
counts:
  fields: 0
  procedures: 0
  events: 0
  subscribers: 0
  controls: 2
  actions: 0
relations:
  out: 1
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
  calls: 1
  called_by: 0
  implements: 0
---

# Page extension 5016 "SD Purch. Inv. Subform"

> Page extension 5016 "SD Purch. Inv. Subform" in ServiceDeclaration (Microsoft.Purchases.Document), extends "Purch. Invoice Subform". Introduced in BC29, still in BC30.

ServiceDeclaration · Microsoft.Purchases.Document · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/W1/ServiceDeclaration/app/src/PurchaseDocuments/SDPurchInvSubform.PageExt.al) · facts from BC29

Extends [Purch. Invoice Subform](../page/55.md).

## Fields on this page

Layout controls in source order, grouped by the container they sit in. Shows: the table field a control is bound to (or its expression as written); ToolTip: the control's own, else the bound field's (marked).

| Group | Control | Shows | ToolTip |
|---|---|---|---|
| addafter(Qty. to Assign) | Service Transaction Type Code | [Service Transaction Type Code](../tableextension/5017.md#fields) | Specifies the code for a service transaction type. |
|  | Applicable For Serv. Decl. | [Applicable For Serv. Decl.](../tableextension/5017.md#fields) | Specifies whether an item or resource is applicable for a service declaration. |

## Triggers

OnOpenPage

## Relations

- extends [Page 55 "Purch. Invoice Subform"](../page/55.md)

## Calls

From the extracted call graph of BC29 (graphify-al on the snapshot checkout): calls whose target is known from a declared type or an `Object::"Name"` argument. Interface dispatch and calls through events are not counted, so the list is not complete.

- [Codeunit 5012 "Service Declaration Mgt."](../codeunit/5012.md) (2 calls: `OnOpenPage → IsFeatureEnabled`, `OnOpenPage → IsServTransTypeEnabled`)

## Across versions

- Present in: BC29-30
- Changed (declaration) in: none

Source: AL metadata extracted from the code (names, ids, signatures, properties); no code bodies (D10).

## Ask your agent

Procedure bodies are not stored here (D10). The call sections above are our own, per object, from the BC29 call graph. For a procedure body or the calls of one procedure, ask bc-code-atlas (external, by Stefan Maron, MIT; default corpus w1-28), which the bc-observatory plugin connects: `bcatlas_resolve_node(object_type: "pageextension", object_name: "SD Purch. Inv. Subform")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.