Follow-up:
Per Jim's advice I created a demo store and attempted an upload.
- Same deal: "Connecting..." forever, then a time-out.
- So I split the file into 3 parts of approx 250 line-items each.
- Part 1: Upload OK.
- Part 2: "Connecting..."
- So I split Part 2 into 3 parts (Part 2a, Part 2b, Part 2c) At this point I didn't think it was a file size issue because the file was not substantially larger than Part 1; my intention was merely to subdivide into smaller sets I needed to comb through to find an error. But apparently there was no error.
- Part 2a, Part 2b, Part 2c, Part 3: Upload OK.
- Check backoffice > Products: everything is there.
So I went back to my client's site and repeated the 5-part upload and
everything turned out better than expected.
Filesize appears to be a pretty critical issue. This has been a very time-consuming and stressful lesson for me.
Very.
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During the Publish operation I was greeted with several hundred errors mostly dealing with "[142]: Template Error: IF using PAGE tag in non-page template" which is an artifact of the original developer's straying
very far off the ShopSite reservation.
This site was implemented very poorly mostly as a result of the client president telling the original developers "Faster! Cheaper!"
I am very careful not to point a finger, but I have mentioned the site appears like it was "rushed" and that a lot of "corners were cut" which, without having to admit anything, the president acknowledges that the site was rushed. I have an outstanding rapport with the president and he has admitted the site needs pretty much to be entirely refactored.
It's going to involve basically starting from scratch.