Hi,

-->First Create a data type

Write an activity and include that in post processing of your flow action.

Steps in activity:

--> Page-New (Data type class)

-->Set all the properties on that page (If you have many properties then create a Data transform and include all the properties in it )

-->Do obj-save (step page: page which you have created in step1)

-->Page-Remove (Best Practice)

No need to commit explicitly because you are calling this activity in flow itself right so system will automatically commits.

Regards,

Vinay Reddy :)