Developer's DescriptionBy Marks and Spencer plcThe On Your Marks app is for new M&S colleagues. Itll give you all the info you need to get you ready for your first day in the business.The On Your Marks app is for new M&S colleagues. Itll give you all the info you need to get you ready for your first day in the business.Youll know this app is for you as well have shared the link with you separately.