In this guide, you can check our guide on how to remove products that have been uploaded previously, in the following 2 ways:
By using the Syncee catalog
In your catalog settings, please set the following to 'Delete':
Once you remove the products from your catalog, you just need to sync it again, and the products will be deleted from your store as well:
Manually, in your store admin
You could delete the products from your store on your admin page of it. Below, you could find a couple of articles for different platforms supported by Sycnee:
Shopify
https://help.shopify.com/en/manual/shopify-admin/productivity-tools/bulk-actions
Wix
https://support.wix.com/en/article/wix-stores-deleting-store-products
BigCommerce
Squarespace
https://support.squarespace.com/hc/en-us/articles/206540527-Editing-products
Ecwid by Lightspeed
https://support.ecwid.com/hc/en-us/articles/360021851699-Deleting-products
Should you have any questions or need any assistance, let us know via the in-app chat or e-mail at support@syncee.co.