Hi, unfortunately I cannot complete the trail https://trailhead.salesforce.com/content/learn/modules/autolaunched-scheduled-flows/run-autolaunched-flow-from-custom-button.
I'm getting the following error:
On the 'Child Campaign' custom button, we can’t find the URL for the Create Child Campaign flow.
I composed the following url:
/flow/Create Child Campaign?campID={!Campaign.Id}&campName={!Campaign.Name}&campOwner={!Campaign.OwnerId}&campStartDate={!Campaign.StartDate}&retURL=/{!Campaign.Id}
Also I followed the other steps adding the button to the campaign page layout.
Any help is greatly appreciated.