I found problems also with Import from Export.  All pages were created, but many did not have the modules added, also DB records were not written.  All items were checked.

I use to use resources & template that still works on when creating a site, but the ability to create new has disappeared.

 

If your module doesn't support iPortable, you are not going to get contents and settings exported or imported.

As best as I remember, importing doesn't preserve moduleId, as that isn't required to be unique -- you might be importing a site into a DNN installation that already has other sites, other moduleId, etc. But the import should get modules correctly and on the correct pages. Also with content and settings if they support iPortable.

Also note that "modern" versions of DNN have two ways of exporting and importing.

First way: From Site Settings you can export a site template with or without content. To do this correctly you need to have modules and skins installed on the new installation before you try to add a site template.

Second way: also from Site Settings you can export/import and you can move a lot more than with the site template. You can move users and IIRC, you can move modules and skins (they get installed in the new installation) as well as module contents. Again, internal Id variables and other things probably get new values. So, it you have things that refer to those non-public items, you probably won't have them transferred correctly.

Those things said, I have had better results with the templates than the import/export process. I don't remember all of the details, but import/export would sometimes choke and die. I believe that I did some debugging and discovered the at least some of those errors were due to bad data in DNN tables from old, old versions of DNN and modules.

In one particular troublesome case, I was able to install modules and skins and then use the template (with content) to rebuild a new copy of the site. It's didn't have many users. I used the ForDNN module to move users, I think successfully.

In my testing, I was able to import/export several simple DNN portals pretty much seamlessly. Unfortunately, it's the sites that stareted a 3.x, 4.x, etc that have all sorts of internal warts and scars, so don't always play nicely.

In addition to this, there are some versions (9.9.something) where site template where created but not available for use. In the most recent version (9.10.2) this is fixed.