If your WordPress pages suddenly show a “404 Page Not Found” error after you updated the permalink or slug for a Custom Post Type (CPT) — don’t panic. It’s a common issue, and the fix is simpler than you might think.
Why It Happens:
When you change a CPT’s URL structure, WordPress may still hold onto the old rewrite rules, causing the new URLs to break. But the good news? You don’t need to dive into complex code to fix it.
✅ How to Fix 404 Errors After Changing a Custom Post Type Slug
- Go to WordPress Dashboard > Settings > Permalinks
- Scroll down and click “Save Changes” (no need to modify anything)
That’s it! WordPress will automatically flush and rebuild the permalink structure, making your CPT pages accessible again with the new slug.
