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

# Post-checkout validation

> Validate addresses after purchase on Thank You and Order Status pages with correction windows, normalization, and low-risk auto-fixes.

## Post-checkout validation

<Frame>
  <img src="https://mintcdn.com/pillsoftwaregmbh/Q0a27EjzB0_v1EwX/images/post-checkout-validation-thumbnail.jpg?fit=max&auto=format&n=Q0a27EjzB0_v1EwX&q=85&s=b1a36934d55346760ff824081c3095fb" alt="Post-checkout validation tutorial thumbnail" width="2560" height="1440" data-path="images/post-checkout-validation-thumbnail.jpg" />
</Frame>

<Card title="Watch tutorial" icon="circle-play" href="https://youtu.be/1yzZpPNrUCo">
  Open the post-checkout setup video on YouTube.
</Card>

### What this does

AddressPill validates addresses after purchase on the Thank You and Order Status pages.

### Why this matters

You can keep checkout smooth while still catching and fixing risky addresses.

### What you can control

* Allow house number in address line 2
* Validate duplicate names after checkout
* Automatic normalization:
  * ZIP formatting
  * spacing fixes
  * move house number to address line 1
  * remove stray leading zero in house number
* Auto-apply small low-risk corrections (city/ZIP/region)
* Set customer correction window (minutes)

### Where to configure

Open [Post-checkout settings](/settings/post-checkout-validation-rules).

## FAQ

### What is post-checkout validation in AddressPill?

It is address validation that runs after order placement, not during checkout.

### Can AddressPill auto-fix small address issues?

Yes, you can enable low-risk auto-corrections for city, ZIP, and region typos.

### Can customers still correct their address after checkout?

Yes, based on the correction window you set in post-checkout settings.