Passing $item to get level ID being shown

classes/class-pmpro-members-list-table.php

@@ -525,7 +525,16 @@ public function column_default( $item, $column_name ) {
 			}
 		} else {
 			// The preferred ways of doing things.
-			do_action( 'pmpro_manage_memberslist_custom_column', $column_name, $item['ID'] );
+			/**
+			 * Fill in columns that don't have a built-in method.
+			 *
+			 * @since TBD
+			 *
+			 * @param string $column_name The name of the column.
+			 * @param int    $user_id     The ID of the user.
+			 * @param array  $item        The membership data being shown.
+			 */
+			do_action( 'pmpro_manage_memberslist_custom_column', $column_name, $item['ID'], $item );
 		}
 	}