unavailable_after meta tag on robots tag
Dear All,
I want to add unavailable_after(including date) meta tag on robots tags under page properties-->advanced tab--> Robots Tags drop down. Kindly help on this. please find the attachment.

About unavailable_after meta tag:
The unavailable_after meta tag is a way to tell search engines that a web page should not be crawled or shown in the search results after a certain date and time. It is useful for pages that have an expiration date, such as event pages, temporary promotions, or news articles. The unavailable_after meta tag is a hint, not a directive, meaning that search engines can choose to ignore it and still crawl or show the page.
For example, if you want to tell search engines not to crawl or show your page after August 5, 2023, you can use this tag:
<meta name="robots" content="unavailable_after: 8/5/2023">