Title: PHP Warning: Undefined variable $should_use_billing_info
Last modified: February 4, 2026

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# PHP Warning: Undefined variable $should_use_billing_info

 *  Resolved [Justin](https://wordpress.org/support/users/jtphelan/)
 * (@jtphelan)
 * [4 months ago](https://wordpress.org/support/topic/php-warning-undefined-variable-should_use_billing_info/)
 * I’m seeing this air quite a bit in my logs.
 * `PHP Warning: Undefined variable $should_use_billing_info in /public_html/wp-
   content/plugins/facebook-for-woocommerce/facebook-commerce-iframe-whatsapp-utility-
   event.php on line 91`

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/)
 * (@marijastuntcoders)
 * [2 months, 3 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-should_use_billing_info/#post-18853132)
 * Hi [@jtphelan](https://wordpress.org/support/users/jtphelan/) !
 * Sorry for the wait – this issue has been addressed in the latest releases. Can
   you update the plugin to the latest version?
 * Please let us know if you need any further assistance.
 * Kind regards,
   Marija
 *  Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/)
 * (@marijastuntcoders)
 * [2 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-should_use_billing_info/#post-18857537)
 * Hi [@jtphelan](https://wordpress.org/support/users/jtphelan/) ,
 * Just wanted to follow up and check if you need any further assistance with the
   plugin?
 * Kind regards,
   Marija
 *  Plugin Support [Marija](https://wordpress.org/support/users/marijastuntcoders/)
 * (@marijastuntcoders)
 * [2 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-should_use_billing_info/#post-18859549)
 * Hi [@jtphelan](https://wordpress.org/support/users/jtphelan/) ,
 * Since we haven’t heard back from you in a while, we will be marking this issue
   as resolved. Please feel free to reach out again, if you need any further assistance.
 * Kind regards,
   Marija

Viewing 3 replies - 1 through 3 (of 3 total)

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 * 3 replies
 * 2 participants
 * Last reply from: [Marija](https://wordpress.org/support/users/marijastuntcoders/)
 * Last activity: [2 months, 2 weeks ago](https://wordpress.org/support/topic/php-warning-undefined-variable-should_use_billing_info/#post-18859549)
 * Status: resolved