Hi,
We are using Episerver campaign API(https://api.campaign.episerver.net/apidoc/index.html#/Recipients/) to manage recipients.
I need to update existing recipient attributes and I am using this post request https://api.campaign.episerver.net/apidoc/index.html#/Recipients/modifyRecipientAttributes for the update.
This API requires attributes to added like "data.[attribute] according to the corresponding recipient list field."
I have tried adding attributes like this 'data.firstname' but no success.
And returned status from API is not very helpful in troubleshooting as it always returns "Not found" result.
Any suggestions?