Some Windows Universal Apps, including apps such as Mail and Calendar, use a different application model than traditional Windows desktop programs. That difference can make substitution delivery less predictable.

Clipboard Behavior

In some Universal App contexts, a substitution may not appear unless the Windows Clipboard already contains something. Copying or cutting any text before triggering the substitution can sometimes resolve the issue.

Ongoing Compatibility Work

ActiveWords continues to explore ways to improve the reliability of both text and content substitutions in Universal App contexts.