Why is the business essentials app not allowing updates of the apps approved in it? I am getting warnings about updates and the app stating it needs an update to stay functional

Several approved apps are complaining about having available updates. One says it will stop functioning if the update is not applied soon. Paycom. Current version 6.2.2. Update is version 6.3.x. Clicking update takes me to the App Store and states a managed phone cannot update through the App Store. Paycom shows in Business essentials it is at 6.3.x. However opening the Paycom app still complains about the update needed and shows it is at 6.2.2