> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.adnabu.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How Shopify Sync Works in the Nabu Image Optimizer App

After you complete onboarding, Nabu Image Optimizer syncs all your store images from Shopify. Here's what to expect.
### What happens during sync
The app pulls all images from the sources you selected (Products, Collections, Blogs) into the app. You'll see a **"Sync in progress"** indicator in the top-right corner of the home page showing progress.

![](https://storage.crisp.chat/users/helpdesk/website/-/e/b/1/4/eb146ac45ce84800/image_1woi4ky.png)

### Viewing sync details
Click on the sync indicator to open the **Sync Status** modal. It shows:
* A progress bar with the number of items synced
* Estimated time remaining
* Breakdown by source — Products, Collections, and Blogs — with individual progress counts
### Can I use the app while syncing?
Yes. You can close the modal and explore the app while the sync continues in the background.
### When sync completes
The indicator in the top-right corner updates to **"Sync completed"** with a green checkmark and the final count. Your **Total Images in Store** count on the home page will update to reflect all synced images.