> For the complete documentation index, see [llms.txt](https://docs.paretodeals.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.paretodeals.com/pareto-limit-purchases/checkout-alerts.md).

# Checkout alerts

Block payments and display error messages directly on the checkout page for Shopify Plus stores

Unlike Shopify Functions, this extension isn't limited by line item quantity and offers better optimization.

* Go to "**Checkout alerts**" menu
* Add block "**Pareto - Limit Checkout**" in checkout page as [guide here](https://docs.paretodeals.com/pareto-limit-purchases/pages/aS4FBglD9AAMv278muN2#id-3.-add-block-in-checkout-page)
* Checked "**Show notification**" option to display an alert when the customer's order does not meet the limit rule. 

<figure><img src="https://3709461896-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEk1svP5esd80prqdegiH%2Fuploads%2Fv91OUq7YdxlH5hyntBwf%2Fimage.png?alt=media&amp;token=5c5cbce5-f552-47b8-a115-b73b31473de8" alt=""><figcaption></figcaption></figure>

* Checked "**Show product component**" option to display details of products that do not meet the limit rule. This allows customers to add or remove products to ensure their order complies with the rule.

<figure><img src="https://3709461896-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FEk1svP5esd80prqdegiH%2Fuploads%2FCUxIoj6wCYQFYLyAUdoo%2Fimage.png?alt=media&amp;token=476a33c7-0458-4371-b0ec-e2f5d124054a" alt=""><figcaption></figcaption></figure>