Hi
Do (can) I install 4seo on my J3 website and export the data, then import it to 4seo in my J4 site?
Again, 4SEO has nothing to do with URLs. It does not create or manage URLs in any way. It does not care or know how URLs are created, won't touch them at all.
To maintain your URLs when moving from Joomla 3 to Joomla 4, what you need is 4SEF. 4SEF does only one thing: create and manage SEF URLs in the way sh404SEF does.
I want to be clear here: 4SEF does absolutely nothing else than creating and managing SEF URLs: absolutely no SEO function, not redirect, nothing else.
4SEF is in beta testing, and has been for the last 5 months (do you receive our newsletter?), pending enough testers to take the "beta" tag off.
Do (can) I install 4seo on my J3 website and export the data, then import it to 4seo in my J4 site?
If I rephrase this to become:
> Do (can) I install 4SEF on my J3 website and export the data, then import it to 4SEF in my J4 site?
Then the answer is no, there is no "export from 4SEF on a site and import from 4SEF on another site".
The simplest way is to just install 4SEF on your new site, and in most cases it will just re-create the same URLs as sh404SEF on Joomla 3.
Now things are more complex if you have:
- non-joomla content (ie an e-commerce, K2, etc): in that case, you need to try, in our experience it will work in nearly all cases as well, automatically
- custom URLs
If you have custom URLs, 4SEF can import them from sh404SEF. But the sh404SEF database tables have to be available on the Joomla 4 site. The normal process is that you install 4SEF on your J3 site, do all the import, and then you upgrade that site to J4.
As you don't follow this path, then you have to make sure the sh404SEF database tables are available to 4SEF on the J4 site, so that it can import the custom SEF URLS. You will have to re-configure 4SEF exactly the same as sh404SEF was on your old site, by hand (when installed on J3, 4SEF reads the configuration automatically but as sh404SEF is not installed on your J4 site, 4SEF cannot read the config, only the data from the db tables).
Note that 4SEF is fully documented, including a getting started video with a chapter on importing from sh404SEF (although it's being done on a Joomla 3 site to be upgraded to J4, not your use case)
We have not touched other sh404SEF features such as custom meta data, page titles, opengraph, etc If you have these, then you indeed need 4SEO - as 4SEF only and strictly only does SEF URLs. The same process will apply here: 4SEO can import these but the sh404SEF database table have to be present in the database of the J4 site.
I've been a sh404sef user for years, is there a discount/upgrade path I can take, or do I just pay full price?
4SEF is available (has been for several months) as part of your sh404SEF subscription so you can have it today, in the downloads. There's only one subscription for sh404SEF / 4SEF. 4SEO is a separate product, doing the job of 4 to 5 SEO extensions, at about half their price, there's definitely no room for any form of discount at any time, grouped or not.
Best regards
Yannick Gaultier
weeblr.com / @weeblr