In order to automatically synchronise your list of subscribers with Addwish, take the following steps:
1: First you go to sendinblue.com and log in to your account.
2: Once logged in you click on your username (in the top right corner) and press SMTP & API
3: we are using version 3 of their API so we require a version 3 compatible API key. If you already have one you can copy it from the key field, if not then you can click the CREATE NEW API KEY button to create one (make sure you choose version 3).
4: Log in to your Addwish account and navigate to Triggered Emails -> Permissions -> Set up automatic permission synchronisation
5: Select SendinBlue from the type dropdown and paste your api key in the correct field.
6: a list of all your mailing-lists should now be generating - once done you can choose the list you want to synchronise.
7: if you are successfull in getting and selecting the right list then press save - your permissions will now be synchronising automatically.
if errors occur then please contact firstname.lastname@example.org