---
id: change/bcapps/9962
type: change
title: "#9962 [Extensibility Request] issue 30383: add purchase line transfer event"
summary: An IsHandled integration event is published in the purchase availability transfer logic, allowing extensions to handle additional purchase document types like Blanket Orders without encountering unsupported source errors.
tier: official
language: en
tags:
  - feature
  - main
  - bc30
  - codeunit purch. availability mgt.
system: purchasing
review:
  state: reviewed
  by: opus
  at: "2026-10-08T02:09:33.228Z"
  flags: []
generated:
  at: "2026-10-08T01:26:53.141Z"
  pipeline: 0.2.0
  prompts:
    extract-change: 1
  input_hash: e049c0c5a314a5cceec57ffd34e32af2c2b7a99d
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/pull/9962
    title: "microsoft/BCApps#9962: [Extensibility Request] issue 30383: add purchase line transfer event"
    date: "2026-08-11"
    commit: e049c0c5a314a5cceec57ffd34e32af2c2b7a99d
    t: null
    quote: publishes an IsHandled event immediately before that error so subscribers can populate Inventory Page Data for custom document types
links:
  learn: []
  objects:
    - object/codeunit/99000973
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes: []
number: 9962
repo: microsoft/BCApps
source_id: bcapps-prs
url: https://github.com/microsoft/BCApps/pull/9962
kind: pr
base_branch: main
major: "30"
merged_at: "2026-08-11T18:17:30Z"
author: AleksandricMarko
author_type: User
community_contribution: false
labels:
  - "Team: SCM"
  - event-request
change_class: code
change_kind: feature
behavior_change: false
breaking: false
files:
  count: 1
  additions: 12
  deletions: 2
  al: 1
apps:
  - Base Application
objects_touched:
  - key: codeunit/99000973
    page: codeunit/99000973
    type: codeunit
    id: 99000973
    name: Purch. Availability Mgt.
    app: Base Application
    status: modified
objects_unjoined: []
obsoletions: []
backports: []
fixes_issues: []
work_items:
  - 644932
systems:
  - purchasing
quote: publishes an IsHandled event immediately before that error so subscribers can populate Inventory Page Data for custom document types
joined_against:
  major: "30"
  commit: ecbc028c25dbe83b61313bc566e6c1d41184bb1c
---

# #9962 [Extensibility Request] issue 30383: add purchase line transfer event

> An IsHandled integration event is published in the purchase availability transfer logic, allowing extensions to handle additional purchase document types like Blanket Orders without encountering unsupported source errors.

[Pull request](https://github.com/microsoft/BCApps/pull/9962) · merged into `main` (BC30) on 2026-08-11 by AleksandricMarko · 1 file (+12 -2), 1 AL · feature · tier official · reviewed (checked by Opus)

## What changed

- New IsHandled event added to TransferPurchaseLine before the unsupported-source error
- Enables extensions to populate inventory page data for custom purchase document types
- Preserves existing standard behavior for supported document types
- Subscribers can now handle Blanket Orders and other custom purchase document types

## AL objects touched

- [Codeunit 99000973 "Purch. Availability Mgt."](../../objects/codeunit/99000973.md), Base Application: modified

## Context

- Work items: AB#644932
- Labels: Team: SCM, event-request
- Systems: purchasing
- From the description: "publishes an IsHandled event immediately before that error so subscribers can populate Inventory Page Data for custom document types"

Source: metadata of a merged pull request in microsoft/BCApps (bcapps): title, labels, changed paths and counts, with a summary in our words. No source text and no description beyond one short quote (D10, D61).