get https://api4.optimove.net/Actions/GetPromoCodesByCampaign
Returns the recipient group IDs, action IDs and promo codes for a particular campaign ID.
Sample Request
https://apiX.optimove.net/current/actions/GetPromoCodesByCampaign?CampaignID=721
Sample Response
[
{"RecipientGroupID":1,"ActionID":24,"PromoCode":"HEP-75-FEB"},
{"RecipientGroupID":2,"ActionID":65,"PromoCode":"GDG-50-FRT"},
{"RecipientGroupID":2,"ActionID":65,"PromoCode":"GDG-50-FRT","HEP-75-FEB"}
]