When you are first creating your Synthetic User Journey, you can edit its frequency in the “Add New Journey” box, using the “Check Interval” slide button.
If you wish to edit the frequency of your User Journey after it has been written. Go to the selected User Journey you wish to edit. In any of the menu options below your selected User Journey, you can edit the journey’s frequency. In the top right corner of any of these page is the “Edit” button, with a cog icon.
Open this, and you can edit the User Journey’s frequency in the “Interval & Regions” section of this page. Here again you can use the slide button to adjust the journey’s frequency. Remember to click the green “Update” button in the left bottom of this section.
Note: Remember, the frequency of the User Journey will affect the credits required to run it. You can see this in the Credits calculator at the bottom of the “Interval & Regions” section.