---
title: "Link and view allergens and items"
slug: "bc-link-and-view-allergens-and-items"
description: "Link allergens to items and BOMs, distinguishing between Allergen and May contain. Ensure compliance with local laws for accurate labeling."
tags: ["BC", "Business Central", "Food", "Task"]
updated: 2026-06-25T09:59:16Z
published: 2026-06-25T09:59:16Z
canonical: "docs.staedean.com/bc-link-and-view-allergens-and-items"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.staedean.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Link and view allergens and items

You can link allergens to items, unapproved items, and BOMs, and declare them as **Allergen** or **May contain**. The distinction is clear. An allergen is a proven and measurable attribute of an item. **May contain** is a possible warning to producers and consumers, based on the risk of cross-contamination somewhere in a production process. Depending on local law, mentioning **May contain** information on labels may be mandatory, allowed, or forbidden. You must determine how to conform to local legislation.

## Setup

On the **Item page**, on the **Assembly/Production** tab, use the **Allergens** button to view allergens currently assigned to the item. On the **Unapproved Item** page, the button is on the **Navigate** tab. Selecting **New** lets you link allergens to the item, on one condition: the item must not have a link to a production BOM (formula, process, co- & byproduct, or packaging), and it must not be part of the output of such a BOM.

The reason is that items that are produced cannot carry allergens of their own. They can only inherit allergens from the process in which they are produced.

When you link an allergen to an item, you must also determine whether it is of the type **Allergen** or **May contain**. If **May contain** applies, the vendor of these items should be able to explain the production process and identify Anywhere Mobility Solutions risk of cross-contamination and its possible consequences.

## Allergen history

After you add an allergen to an item, or when allergen information changes, you can view the change in the **Allergen History** page. This page shows the number of changes made to the allergen information of the item, together with the content of the change, the date and time stamp, and the user who entered the change. Depending on the number of changes, you can view the differences from one allergen set to another, allergens added or deleted from the item, as well as the type (allergen or **May contain**).

## Related

- [Perform an allergen rollup](/bc-perform-an-allergen-rollup.md)
- [Allergen management overview](/bc-allergen-management.md)