CMS pages, under Content → Pages, are for standing content on your own site — About, Services, Terms, Contact. Content that changes rarely and needs a permanent address.
Creating one
Title, slug, body, publish. Same editor as blog posts and the same media library. The slug becomes the URL, so choose it deliberately: changing it later breaks every link that already points there, including anything Google has indexed and anything printed on a business card.
Pages versus posts
A page is a fixed destination in your site's structure. A post is a dated entry in a feed. If it would look odd to see a date on it, it is a page.
The practical test: would you link to this from your main navigation? Services, yes. "Five things to check before buying", no — that is a post.
Do not use a CMS page as your ad campaign landing page. They look interchangeable and are not. A registered landing page captures the click ID, runs bot protection on the form, and attributes every lead to the campaign that produced it. A CMS page does none of that — leads from one arrive with no ad attribution at all, which means they can never be reported back to Google or Meta as conversions.
That difference is invisible until you try to work out which campaign made you money, at which point it is retrospective and unfixable.
SEO fields
Same three as posts: slug, meta title, meta description. They matter more here, because standing pages are what people search for by name — "[your company] pricing", "[your company] contact" — and those searches are as close to buying as your traffic gets.
Blank fields fall back to the defaults in company settings, which is better than empty and worse than written.
Editing a live page
Edits go live on save. There is no staging step, so for a substantial rewrite of an important page it is worth drafting the text somewhere else and pasting it in once, rather than editing live in ten passes while visitors read the half-finished version.
Revisions are kept, so a bad edit is recoverable.
Deleting
Deleting a page removes the URL. Anyone who bookmarked it, and any search result pointing at it, now hits a dead end.
If a page has genuinely served its purpose, redirecting it to its nearest replacement is almost always better than deleting it — that is done at your web server or host rather than in the CRM, but it is worth doing for any page that had traffic.