diff --git src/bp-templates/bp-nouveau/includes/groups/ajax.php src/bp-templates/bp-nouveau/includes/groups/ajax.php
index fb15e1455..c07c9b762 100644
--- src/bp-templates/bp-nouveau/includes/groups/ajax.php
+++ src/bp-templates/bp-nouveau/includes/groups/ajax.php
@@ -3,7 +3,7 @@
  * Groups Ajax functions
  *
  * @since 3.0.0
- * @version 4.4.0
+ * @version 7.0.0
  */
 
 // Exit if accessed directly.
@@ -407,21 +407,9 @@ function bp_nouveau_ajax_send_group_invites() {
 		wp_send_json_error( $response );
 	}
 
-	if ( ! empty( $_POST['message'] ) ) {
-		$bp->groups->invites_message = wp_kses( wp_unslash( $_POST['message'] ), array() );
-
-		add_filter( 'groups_notification_group_invites_message', 'bp_nouveau_groups_invites_custom_message', 10, 1 );
-	}
-
 	// Send the invites.
 	groups_send_invites( array(	'group_id' => $group_id ) );
 
-	if ( ! empty( $_POST['message'] ) ) {
-		unset( $bp->groups->invites_message );
-
-		remove_filter( 'groups_notification_group_invites_message', 'bp_nouveau_groups_invites_custom_message', 10, 1 );
-	}
-
 	if ( array_search( false, $invited ) ) {
 		$errors = array_keys( $invited, false );
 
diff --git src/bp-templates/bp-nouveau/includes/groups/functions.php src/bp-templates/bp-nouveau/includes/groups/functions.php
index 3b3dbb324..6b61462b1 100644
--- src/bp-templates/bp-nouveau/includes/groups/functions.php
+++ src/bp-templates/bp-nouveau/includes/groups/functions.php
@@ -363,9 +363,16 @@ function bp_nouveau_group_setup_nav() {
 }
 
 /**
+ * Includes a message into the sent invitation email.
+ *
  * @since 3.0.0
+ * @deprecated 7.0.0
+ *
+ * @param string $message The message to send with the invite
  */
 function bp_nouveau_groups_invites_custom_message( $message = '' ) {
+	_deprecated_function( __FUNCTION__, '7.0.0' );
+
 	if ( empty( $message ) ) {
 		return $message;
 	}