January 14, 2020 marks the end of mainstream support for Microsoft dynamics NAV 2015. We will not get any new regulatory features or hotfixes for this version anymore.
Please note the date, April 13, 2021 will be end of mainstream support for Dynamics NAV 2016.
Please migrate your NAV versions to D365 Business Central.
Please contact me if you have any questions on migration and/or training required on D365 BC at firstname.lastname@example.org