EffectConnect
Go to your EffectConnect account and find the API v3 in the Appstore via this link: https://go.effectconnect.com/app-store/apps/353
Click 'Genereer API keys'
Give the key a name i.e. 'Attalos.io' and click on 'API keys genereren'.
Navigate to 'Setup > Permissions' and select the following:
Click save.
on your attalos.io environment and click 'EffectConnect'