Diagnosis
The settings for function &v1& are such that this function can beactivated by way of a field group. In this case you cannot activate thefunction by way of the activity/view, and/or activity/view/screensequence category.

System Response
Information message, navigation is denied.

Procedure
If you want to activate the function by way of the activity/view,and/or activity/view/screen sequence category, you must select thisoption in the detail screen for the function.