Title: PHP Warning: Cannot modify header information
Last modified: April 3, 2023

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# PHP Warning: Cannot modify header information

 *  Resolved [Aslam Khan Gouran](https://wordpress.org/support/users/aslamkhangouran/)
 * (@aslamkhangouran)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-23/)
 *  PHP Warning:  Cannot modify header information – headers already sent by …
 * getting this issue because space before php code in file (a space in line 1 before
   php tag start) “class-mvx-email-vendor-new-coupon-followed-customer.php”
 * file location dc-woocommerce-multi-vendor/classes/emails/class-mvx-email-vendor-
   new-coupon-followed-customer.php

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

 *  Plugin Author [MultiVendorX](https://wordpress.org/support/users/wcmp/)
 * (@wcmp)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-23/#post-16624243)
 * Hi [@aslamkhangouran](https://wordpress.org/support/users/aslamkhangouran/), 
   we have released an update today with the fix. Kindly update the plugin to the
   latest version and check.
 * Please do keep us posted.
 *  Thread Starter [Aslam Khan Gouran](https://wordpress.org/support/users/aslamkhangouran/)
 * (@aslamkhangouran)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-23/#post-16624533)
 * Now issue is solved, Thank You
 *  Plugin Author [MultiVendorX](https://wordpress.org/support/users/wcmp/)
 * (@wcmp)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-23/#post-16625335)
 * Great to know that [@aslamkhangouran](https://wordpress.org/support/users/aslamkhangouran/)
 * If you are happy with our plugin and support, we would love it if you shared 
   your experience by giving us 5/5 review here : [https://wordpress.org/support/plugin/dc-woocommerce-multi-vendor/reviews/#new-post](https://wordpress.org/support/plugin/dc-woocommerce-multi-vendor/reviews/#new-post)

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

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## Tags

 * [cannot modify header](https://wordpress.org/support/topic-tag/cannot-modify-header/)
 * [PHP Warning](https://wordpress.org/support/topic-tag/php-warning/)

 * 3 replies
 * 2 participants
 * Last reply from: [MultiVendorX](https://wordpress.org/support/users/wcmp/)
 * Last activity: [3 years, 1 month ago](https://wordpress.org/support/topic/php-warning-cannot-modify-header-information-23/#post-16625335)
 * Status: resolved