I have the following code fraction, but it does not work, I want that after activating a plugin this calls an action on the footer and prints something, but I can't do it, the problem seems that the `admin_footer` does not run, I don't know if `actived_plugin` is just before or after the html is printed so that the `admin_footer`, or how could I fix it? add_action( 'activated_plugin', 'admin_activated_plugin' ); function admin_activated_plugin(){ // up to here if you run .... // but // the hook below doesn't add_action( 'admin_footer', 'after_activate_print_footer', 99 ); } function after_activate_print_footer(){ echo "something"; } In conclusion, I want to print a text in the header or footer just after a plugin is activated