---
id: object/pageextension/18088-in
type: object
title: Page extension 18088 "GST Purchases Setup Ext" (IN)
summary: Page extension 18088 "GST Purchases Setup Ext" (IN) in the IN country layer (Microsoft.Purchases.Setup), extends "Purchases & Payables Setup". Introduced in BC29, still in BC30.
tier: official
language: en
tags:
  - pageextension
  - in layer
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: 2884d28e4d77750bfa7785cefb4d09453828c3883370ff33adfcee0be0f8af8d
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/IN/INGST/app/GSTPurchase/src/PageExtension/GSTPurchasesSetupExt.PageExt.al
    title: src/Apps/IN/INGST/app/GSTPurchase/src/PageExtension/GSTPurchasesSetupExt.PageExt.al (releases/29.x)
    date: null
    commit: ea08af5ef2d6a9b5c5af4a029288abbe2c883220
    t: null
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations:
    - localization/in
  videos: []
  posts: []
  guidelines: []
object_type: pageextension
object_id: 18088
name: GST Purchases Setup Ext
namespace: Microsoft.Purchases.Setup
app: INGST
extends: Purchases & Payables Setup
first_version: "29"
last_version: "30"
present_in:
  - "29"
  - "30"
changed_in: []
source_major: "29"
obsolete: null
countries: []
ms_search_form_ids: []
country: IN
counts:
  fields: 0
  procedures: 0
  events: 0
  subscribers: 0
  controls: 8
  actions: 0
relations:
  out: 0
  referenced_by: 0
  pages: 0
  extended_by: 0
  event_subscribers: 0
---

# Page extension 18088 "GST Purchases Setup Ext" (IN)

> Page extension 18088 "GST Purchases Setup Ext" (IN) in the IN country layer (Microsoft.Purchases.Setup), extends "Purchases & Payables Setup". Introduced in BC29, still in BC30.

IN country layer · Microsoft.Purchases.Setup · BC29-30 · [source at ea08af5e](https://github.com/microsoft/BCApps/blob/ea08af5ef2d6a9b5c5af4a029288abbe2c883220/src/Apps/IN/INGST/app/GSTPurchase/src/PageExtension/GSTPurchasesSetupExt.PageExt.al) · facts from BC29

An object of the [IN localization](../../localizations/in.md), not part of W1.

## 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 |
|---|---|---|---|
| addlast(Number Series) | GST Liability Adj. Jnl Nos. | `Rec."GST Liability Adj. Jnl Nos."` | Specifies the code for the number series that will be used to assign numbers to GST liability journal. |
|  | RCM Exempt start Date (Unreg) | `Rec."RCM Exempt start Date (Unreg)"` | Specifies the RCM Exepmt Start Date. |
|  | RCM Exempt End Date (Unreg) | `Rec."RCM Exempt End Date (Unreg)"` | Specifies the RCM Exepmt End Date. |
|  | Delivery Challan Nos. | `Rec."Delivery Challan Nos."` | Specifies the number series code used for delivery challan. |
|  | Posted Delivery Challan Nos. | `Rec."Posted Delivery Challan Nos."` | Specifies the number series code used for posted delivery challan. |
|  | Multiple Subcon. Order Det Nos | `Rec."Multiple Subcon. Order Det Nos"` | Specifies the number series code used for multiple subcontracting order details document. |
|  | Subcontracting Order Nos. | `Rec."Subcontracting Order Nos."` | Specifies the number series code used for subcontracting order. |
|  | Posted SC Comp. Rcpt. Nos. | `Rec."Posted SC Comp. Rcpt. Nos."` | Specifies the identification code for posted subcontracting component receipt numbers for receipt number transaction. |

## 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). 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: "GST Purchases Setup Ext")`, then `bcatlas_get_procedure_body` or `bcatlas_get_neighbors` on the returned id.

A IN country object, not part of W1: the default corpus does not have it; `bcatlas_list_countries` shows which countries the atlas has.
