Hi @nubalaio, thanks for getting in touch with us.
In order to make product image a required option, please use the below code :
/**
**required some wcmp product field
**/
add_action( 'wcmp_before_post_update', 'required_wcmp_product_field' );
function required_wcmp_product_field(){
$required_feature_image = isset( $_POST['featured_img'] ) ? $_POST['featured_img'] : '';
if(!$required_regular_price || !$required_product_description || !$required_feature_image || !$required_product_image || !$required_shipping_weight_field ){
wc_add_notice( __('You have to add description,images,regualar price and shipping weight', 'dc-woocommerce-multi-vendor'), 'error' );
wp_redirect( apply_filters( 'wcmp_vendor_save_product_redirect_url', wcmp_get_vendor_dashboard_endpoint_url( get_wcmp_vendor_settings( 'wcmp_edit_product_endpoint', 'vendor', 'general', 'edit-product' ), $_POST['post_ID'] ) ) );
exit;
}
}
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