Hi!   I believe that there is a misunderstanding here.  To grant your user correct access rights you need to be logged on with a user with the role "Customer administrator".  When I check I see that your user does not have the correct user rights "Integration Administrator" for App Store in your testcompany. So what you need to do here is to ask one of your Customer Administrators, for the company you want to interact with, to go to https://signin.visma.net and click on the tab Admin panel. Then by following the instructions "How to assign Appstore: Integration Administrator Role" in the guide "Getting started with Visma Developer Portal" you should get this to work.   Not that this forum for Visma.net normally does not support questions regarding Visma.net integrations. As a certified developer for Visma.net integrations you have access to our Developers Visma.net forum where everything regarding API and Integrations is handled.   Have a great day!   /Jonas ... View more