How to change a URL in WordPress without screwing up

Very informative, thank you ma'am 💯

Very helpful video. To clarify, the title and slug don't have to match and only the slug is searchable by Google?

a quick tip, if someones looking to change the slug, they already know what a slug is!

Finally after searching many videos I found this one that actually helped, thank you! :)

Is it better to use a shorter slug or a more accurate slug? Example...if I sell Nikon Microscope Parts should I be using the shorter slug such as "nikon-parts" or the more accurate "nikon-microscope-parts" slug?

before watching this video I change the permalink but I screw it up. I need help
when I change URL after that I can't log to WordPress interface ( 404 error found )