Title: Adding query string on WordPress permalinks causes 404
Last modified: November 17, 2016

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# Adding query string on WordPress permalinks causes 404

 *  [Akexis](https://wordpress.org/support/users/akexis/)
 * (@akexis)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/adding-query-string-on-wordpress-permalinks-causes-404/)
 * So this is a support topic I already have the answer to that I’m posting here
   to hopefully make more visible. I spent a maddening amount of time yesterday 
   trying to figure out why a query string was returning a 404 while using pretty
   permalinks. I was pre-populating fields on a form from one page to another using
   Gravity Forms. If I changed the pretty permalinks back to the default Plain, 
   it would work.
 * Also, as a side note, I found a nested topic about how Yoast SEO might also cause
   issues here if you have the advanced option “Redirect ugly URLs to clean permalinks.(
   Not recommended in many cases!)” enabled. So if you’re still running into issues
   and are using this plugin, check that.
 * Long story short, I was running into issues with reserved terms. Here is a list:
   
   [https://codex.wordpress.org/Function_Reference/register_taxonomy#Reserved_Terms](https://codex.wordpress.org/Function_Reference/register_taxonomy#Reserved_Terms)
 * Using name={Name:1} was the reason. I changed both for the sake of sanity to 
   first_name={First Form Name:1}. Change your $_GET variable and field name.
 * I had to rephrase my searches a lot and dig pretty deep to find the solution,
   so hopefully I’ll save someone else (likely myself on a future Google quest) 
   a lot of time.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Deborah](https://wordpress.org/support/users/debeckett/)
 * (@debeckett)
 * [9 years, 4 months ago](https://wordpress.org/support/topic/adding-query-string-on-wordpress-permalinks-causes-404/#post-8512971)
 * Thanks for sharing your solution!
 *  [daltonrowe](https://wordpress.org/support/users/daltonrowe/)
 * (@daltonrowe)
 * [9 years ago](https://wordpress.org/support/topic/adding-query-string-on-wordpress-permalinks-causes-404/#post-8918728)
 * Thanks, this helped me out too.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Adding query string on WordPress permalinks causes 404’ is closed to 
new replies.

## Tags

 * [permalinks](https://wordpress.org/support/topic-tag/permalinks/)
 * [Query String](https://wordpress.org/support/topic-tag/query-string/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 3 participants
 * Last reply from: [daltonrowe](https://wordpress.org/support/users/daltonrowe/)
 * Last activity: [9 years ago](https://wordpress.org/support/topic/adding-query-string-on-wordpress-permalinks-causes-404/#post-8918728)
 * Status: not a support question

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