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# Order authorization and medical necessity process

> What happens to a Truemed order between authorization and payment capture, including approval and rejection outcomes.

**Watch the demo [here](https://app.trupeer.ai/view/cWXd99QzH).**

![Order authorization demo](/_fern-img/18014a35889be759be2b3471164f09c5e1de652e0b534b0a773a10cb6401dae0.webp)

This guide explains the process a customer goes through after an order is authorized but not yet captured. It details the communications received by the customer, the possible outcomes, and the subsequent steps.

## Order authorization and medical necessity review

**Step 1:** After order authorization, the customer receives an email notification. This email informs them that the order is placed and the provider is reviewing the letter of medical necessity.

![Order confirmation email](/_fern-img/77f1f2b7b214bbebc37d027e86be5284a205906f4c11fefd0960af37052dfef5.webp)

**Step 2:** The customer also receives a confirmation email from the merchant.

## Approval of medical necessity letter

**Step 1:** Upon approval of the letter of medical necessity, the customer receives a payment confirmation from the merchant.

**Step 2:** The customer also receives instructions on how to access their letter of medical necessity, including all the details they provided, and a receipt for their recent purchase.

![LMN access instructions](/_fern-img/4ca5b5a068de57c71c3c5741cf9c4f3a64b2361517b6bfed0dc7ecd7c001fc99.webp)

## Rejection of medical necessity letter

**Step 1:** If the letter of medical necessity is rejected, the customer receives an email notification of the rejection.

**Step 2:** The customer sees a canceled payment from the merchant. The payment does not process on their HSA/FSA card.