why isn't the Journaling Suggestions capability is available?

The Journaling Suggestions capability might not be available due to several reasons:

1. User Control: The suggestions are controlled by the user. They can choose what content gets included in their suggestions during onboarding or under privacy settings. If the user has not enabled the reflection prompts or other journaling suggestions, your application will not receive them. (Enhanced suggestions for your journaling app)

2. Settings Configuration: Reflection prompts are enabled by default but are controlled by a new reflection prompts toggle under journaling suggestion settings. If this toggle is turned off, the suggestions will not be available. (Enhanced suggestions for your journaling app)

3. Onboarding Tips: Users who started using journaling suggestions before iOS 18 will get a tip on their suggestion sheet to help them enable state of mind content. For new users, this can be enabled during onboarding. If these steps are not followed, the suggestions might not appear. (Enhanced suggestions for your journaling app)

For more detailed information, you can refer to the session Enhanced suggestions for your journaling app.