To add or edit image alt text:
From the Dashboard, go to the SEO Tools tab and click Image Alt Text.
View all your product images in this section.
Click Generate Suggestions to see a list of alt text options for each image.
Click a suggestion to apply it to your image.
Click Save to publish your changes to your store.
You can also use the dropdown menu at the top of the page to filter and view all product images, only images with alt text, or only those without alt text.