# Macy's Prop 65 Warning Field Guide

> Provide Prop 65 warning verbiage if applicable to the product.

**Prop 65 Warning** holds the California Proposition 65 warning text for a product that needs one. Proposition 65 is the California law that requires a warning when a product sold in the state can expose a person to a listed chemical, and Macy's shows the warning on the product page. The field is optional: fill it only when the warning applies to the product.

The value is set once per style group and shown for every color and size, so it must apply to the whole style.

## Rules

| Rule | Requirement |
| --- | --- |
| Required | No; only when the product needs a Prop 65 warning |
| Level | Style group; one value for all colors and sizes |
| Length | Up to 10,240 characters |
| Content | The warning text as plain text; no HTML |

Use the wording your compliance documentation or supplier provides. Osello does not compose a warning, and this guide is not legal advice on whether a product needs one.

## Examples

| Value | Verdict | Reason |
| --- | --- | --- |
| The warning statement supplied with the product's compliance paperwork | Good | The text applies to this product and is quoted as given |
| Empty, for a product with no listed-chemical exposure | Good | The field is optional and blank means no warning |
| "See packaging for warnings" | Weak | Not a warning; the shopper cannot see the packaging online |
| A general disclaimer pasted on every product | Weak | The warning belongs only on products that need it |

## Common mistakes

- A warning on every listing to be safe. The field is for products that require one.
- Paraphrasing the supplied wording.
- A choking hazard or other safety notice. This field is specific to Proposition 65.

## How Osello fills this field

Osello treats Prop 65 Warning as an optional, parent-level text field set once per style group. It fills the value only when the source product carries a Prop 65 warning, copies the wording as given with any HTML stripped, and leaves the field blank when the source has none rather than inventing a warning. A warning stored on your Shopify product can be mapped through [Shopify metafields](/help/products/using-shopify-metafields).

## Frequently asked questions

### Is the Prop 65 Warning field required on Macy's?

No. It is optional and only used when the product needs a Proposition 65 warning. Leave it blank otherwise.

### Where does the warning appear?

On the Macy's product page, for every color and size of the style, since the field is set at the style-group level.

### Does Osello write the warning for me?

No. It copies the warning from your source product data when one exists and otherwise leaves the field empty. The wording and the decision that a product needs one come from your compliance documentation.