You could use this search and replace tool: search and replace by interconnectit Apart from that you could put some redirects in your htaccess, but really the search and replace works great.
Automatically add date to the auto generation of post slug
Including taxonomy term before post type breaks top level pages
You might want to taker a look at add_rewrite_rule or add_rewrite_endpoint. Then to test, install a plugin called Monkeyman Rewrite Analyzer, it’ll help you show you if your rules are conflicting. There are a couple examples in this answer.
Removed custom post type slug but not working for child pages
Editors change a permalink on an unpublished post, but only admins change a permalink on a post that has ever been published?
Edit page slug after save, cause 404 by linked pages
This is what we ended up coming up with that seems to work. I’m not sure if it’s the best or right approach but it seems to do the trick. Anyone forsee any problems with this route? //Re-register default post type for rewrite purposes. function zbt_reregister_post() { register_post_type( ‘post’, array( ‘labels’ => array( ‘name_admin_bar’ => … Read more
1. Changing the page URL If the page you are talking about (ex: ABC) is on your WordPress site, it will automatically be listed in a dropdown called Pages in the Menu, like so: From there you can check the page you want and click “Add to Menu“. When you add a “Custom Link” to … Read more
Ended up finding a plugin that allows me to customize the permalinks to solve my problem. https://wordpress.org/plugins/custom-permalinks/