Title: Constraint Error
Last modified: January 10, 2020

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# Constraint Error

 *  [kidacom](https://wordpress.org/support/users/kidacom/)
 * (@kidacom)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/constraint-error/)
 * Hello,
    I am using your great plugin in free version and it’s really good, I 
   will upgrade soon for pro version to get more options ! But I have an issue when
   I am typing a client name in the search customer field. Somes times, a pop up
   error window appear with this message : ConstraintError “A mutation operation
   in the transaction failed because a constraint was not satisfied” See link below
   to get a screen shot : [https://www.kidacom-online.com/intrepides-jura2019/wp-content/uploads/2020/01/error-screenshot-pos.jpg](https://www.kidacom-online.com/intrepides-jura2019/wp-content/uploads/2020/01/error-screenshot-pos.jpg)
   Sometimes (like today) I get another different message error about “email key”,
   see screenshot below : [https://www.kidacom-online.com/intrepides-jura2019/wp-content/uploads/2020/01/error-2-screen-shot.png](https://www.kidacom-online.com/intrepides-jura2019/wp-content/uploads/2020/01/error-2-screen-shot.png)
 * I dont understand these errors and how to avoid these messages, could you help
   me please ?
 * Thanks in advance.
 * Claire

Viewing 1 replies (of 1 total)

 *  [marinoss](https://wordpress.org/support/users/marinoss/)
 * (@marinoss)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/constraint-error/#post-12391345)
 * I am having exactly the same problem. I am using WordPress 5.3.2 Running PHP 
   version: 7.1.33 and WooCommerce 3.7.1. Can you please help? Thank you.

Viewing 1 replies (of 1 total)

The topic ‘Constraint Error’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [marinoss](https://wordpress.org/support/users/marinoss/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/constraint-error/#post-12391345)
 * Status: not resolved