Taking a look at some samples of the phrases "inside the backend" and "on the backend" on Google Books, evidently anything at all that runs inside the backend (processes, services, etc. Be as forgiving of structure as possible when processing person input. For instance, accept cell phone numbers which include https://ecommerce-web-development73604.blue-blogs.com/43947865/ai-integration-into-frontend-apps-things-to-know-before-you-buy