Talk with the people who will use the tool in real work. Note what works now and what needs to change for the team.
Keep must-have needs apart from features that would simply be nice. Set one clear goal that the team can check after launch.
Name the people, tasks, and devices that the new tool must serve. Good planning starts with real work, not a long list of features.
Ask each team lead to...
English
Arabic
French
Spanish
Portuguese
Turkish
Dutch
Italiano
Russian
Romaian
Portuguese (Brazil)
Greek