I've worked with Microsoft Dynamics GP for over 17 years and, like most people, do not work for the company with whom I first started. In fact, I am now on my third company working with Microsoft Dynamics GP (and starting to do some work with Microsoft Dynamics Business Central). 18 months after I left the first company they bowed out of supporting Dynamics GP; I now hear from a former client whom ISC Software were already on-boarding for support, that two years after I left the second company, Perfect Image Ltd., that they are also now bowing out of supporting Microsoft Dynamics GP.
A few of the clients I worked with at Perfect Image have already decided that they needed to change their support partner and moved across to ISC Software where they can continue to work with me and report being happy with the support, and other services they receive from the team and I.
With a new year about to dawn (and hopefully a better one that 2020), it might be time to review your support contract and consider moving to ISC Software.