One of my client getting this error when calling the V3 api to get campaign detail. Can you please let me know 'why the campaign type is not supported'?
"error_message": "Unable to retrieve Email Campaign information because this campaign type is not supported"
While that endpoint will allow you to get details for an existing Email campaign, Automated Email campaigns are not supported (Automated Series, Welcome Emails, Birthday Emails, Anniversary Emails). The Campaign ID provided is for a Welcome Email campaign.