
Hey there!
Nice to meet you! I'm Randy, an Independent Advisor.
Hi Joliane, On Word mobile, the auto-capitalization usually comes from your phone’s keyboard, not the app itself. To fix it, go to your phone’s keyboard settings and turn off Auto-Capitalization (on iPhone: Settings > General > Keyboard, on Android: Settings > System > Languages & Input > On-screen Keyboard). Also, in the Word app, check Settings > Proofing and disable Capitalize first letter of sentences or AutoCorrect.
Hope that this helps,
Best regards,