---
id: change/bcapps/9451
type: change
title: "#9451 [Extensibility Request] issue 30292: add temporary Warehouse Activity Line parameter to OnBeforeCreateWhseActivHeader"
summary: The OnBeforeCreateWhseActivHeader event in the Create Pick codeunit now includes a temporary Warehouse Activity Line parameter, allowing subscribers to inspect pick lines before a warehouse activity header is created.
tier: official
language: en
tags:
  - feature
  - main
  - bc30
  - codeunit create pick
system: warehouse
review:
  state: reviewed
  by: opus
  at: "2026-10-08T02:12:44.759Z"
  flags: []
generated:
  at: "2026-10-08T01:26:53.141Z"
  pipeline: 0.2.0
  prompts:
    extract-change: 1
  input_hash: 34b5bb90334baec1d38d99ee4a7499289ffc9793
evidence:
  - kind: code
    url: https://github.com/microsoft/BCApps/pull/9451
    title: "microsoft/BCApps#9451: [Extensibility Request] issue 30292: add temporary Warehouse Activity Line parameter to OnBeforeCreateWhseActivHeader"
    date: "2026-07-15"
    commit: 34b5bb90334baec1d38d99ee4a7499289ffc9793
    t: null
    quote: null
links:
  learn: []
  objects:
    - object/codeunit/7312
  features: []
  topics: []
  localizations: []
  videos: []
  posts: []
  guidelines: []
  changes: []
number: 9451
repo: microsoft/BCApps
source_id: bcapps-prs
url: https://github.com/microsoft/BCApps/pull/9451
kind: pr
base_branch: main
major: "30"
merged_at: "2026-07-15T09:33:20Z"
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: 2
  deletions: 2
  al: 1
apps:
  - Base Application
objects_touched:
  - key: codeunit/7312
    page: codeunit/7312
    type: codeunit
    id: 7312
    name: Create Pick
    app: Base Application
    status: modified
objects_unjoined: []
obsoletions: []
backports: []
fixes_issues: []
work_items:
  - 641814
systems:
  - warehouse
quote: null
joined_against:
  major: "30"
  commit: ecbc028c25dbe83b61313bc566e6c1d41184bb1c
---

# #9451 [Extensibility Request] issue 30292: add temporary Warehouse Activity Line parameter to OnBeforeCreateWhseActivHeader

> The OnBeforeCreateWhseActivHeader event in the Create Pick codeunit now includes a temporary Warehouse Activity Line parameter, allowing subscribers to inspect pick lines before a warehouse activity header is created.

[Pull request](https://github.com/microsoft/BCApps/pull/9451) · merged into `main` (BC30) on 2026-07-15 by AleksandricMarko · 1 file (+2 -2), 1 AL · feature · tier official · reviewed (checked by Opus)

## What changed

- Adds a temporary Warehouse Activity Line parameter to OnBeforeCreateWhseActivHeader in codeunit 7312 Create Pick
- Subscribers can inspect temporary pick lines before the warehouse activity header is created
- Lets subscribers decide whether a new header is needed or lines should go to an existing pick
- Supports adding new Sales, Transfer, and Purchase Return Order lines to an existing warehouse pick

## AL objects touched

- [Codeunit 7312 "Create Pick"](../../objects/codeunit/7312.md), Base Application: modified

## Context

- Work items: AB#641814
- Labels: Team: SCM, event-request
- Systems: warehouse

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).