Background remover is used to remove any image with a background, so your customer's uploading the image will automatically remove the background. To use this feature, you will need to sign up at https://www.remove.bg/ to obtain an API key.
Once you are registered to the https://www.remove.bg/ go to my account area.
In the account area select API Keys,
Create a new API key, and input your label once you generate the label it will give you the API key. Copy that API key go to Customify app and select settings.
next select social media integration
Once you are inside you can see the API Key remove the background
Place your API Key there and save it. Now, all images uploaded by your customers will automatically use the background remover.