What to do with old URLs

I have a customer who just changed around 700+ product URLs. The reason is for integrating with their billing program, so cannot undo.
The issue now is the old product URLs are 404. The old URLs are in English, while the new URLs are in Norwegian. For example, from /goa-black-gold-butter-knife/ to /goa-svart-gull-smorkniv/

I don't think that manually creating 301 redirect for 700+ URLs is a good idea, but don't know either how to redirect the old URLs to the new ones. Any helpful idea in this case, please?
Thank you.

hpno said:

I don't think that manually creating 301 redirect for 700+ URLs is a good idea, but don't know either how to redirect the old URLs to the new ones. Any helpful idea in this case, please?

Click to expand...

It's the best idea. Hire a VA or something for just massive job unless you can find some patterns that can be overridden with some regex. Just creating a big htaccess with all the rules will do the trick.
Maybe if you feed an high memory context AI like claude2 with the old an new AI and you give the instructions, it may also give you the final htaccess with all 700 redirects result.

hpno said:

I don't think that manually creating 301 redirect for 700+ URLs is a good idea, but don't know either how to redirect the old URLs to the new ones.

Click to expand...

That's actually the best idea, unless you want Google to tank the website due to too much error 404 pages. In fact, that's one of the easies ways to kill a website on Google.

I would recommend you find a way to do it. Since actual words in the URL were change, not just folders/categories. You might need to do it manually to avoid mistakes.