I am trying to create a meta tag field for the content manager to manually enter the information. This is for SEO purposes. The tag I am trying to create is og (open graph) tag. I am very new to AEM development. I was wondering if anyone has any ideas on how I should go about it. Thank you.
Assuming that your basepage component has a resourceSuperType of the WCM Core v2 Page Component, you can simply overwrite head.html, and include new meta tag fields such as Facebook OpenGraph, Twitter, Linkedin, etc... to be server-side rendered, apart of the page.
2. Add a new tab in page properties to allow the content authors to configure these settings on the page properties. When extending the WCM Core v2 Page Component, you can utilise the Sling Resource Merger to add a new " SEO" tabs to the existing page properties touch UI dialogue.
3. Configure the page with the new page properties and test.