Microsoft have brought the Dialogs deprecation date forward from October to as soon as February for some users. Whilst they have continued support for the majority of features within Dynamics, the popular Dialogs system is being removed and for a lot of users this causes serious concerns or operational problems.
This is where Dialogs For Unified Interface can help.
Dialogs For Unified Interface is a solution for Dynamics 365 (v9) offered at no cost from
TKDialogs which will allow you to continue running those dialogs like nothing has changed.