> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://help.getburst.com/shopify-eligibility/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://help.getburst.com/_mcp/server.

# Product eligibility on Shopify

> **Warning**
>
> Draft. This section is being prepared and may change.

Burst checks every product in your Shopify catalog for FSA/HSA eligibility and stores the result on the product in Shopify. New products are checked daily.

| Result                     | What happens                                                                       |
| -------------------------- | ---------------------------------------------------------------------------------- |
| **Eligible**               | Customers can use FSA/HSA funds without a letter                                   |
| **Eligible with a letter** | Customers who buy it get the post-purchase offer for a Letter of Medical Necessity |
| **Not eligible**           | No Burst follow-up                                                                 |

If a product looks miscategorized, email [brands-support@getburst.com](mailto:brands-support@getburst.com) with the product name and we'll review it.

## Post-purchase emails

When an order includes a product that's eligible with a letter, Burst emails the customer after purchase with an offer to get it reimbursed. Emails go only to US orders, and never twice for the same order.

Want to turn post-purchase emails off for your store? [Contact support](/contact).