Well first of all, I'm not able to activate any data event. And now I decided to do the workaround and create a custom business event for packing slip posting. Endpoint is configured fine and I can activate the business event. Then when I test it by posting a packing slip I get the following error in business event catalog > active business events > errors -section:
"Response status code does not indicate success: 400 ({"error":{"code":"0x80040224","message":"OrganizationRequest failed with error:\r\nPrincipal user (Id=7d054744-965a-ed11-9562-6045bd8f9e32, type=8, roleCount=1, privilegeCount=82, accessMode=4), is missing prvReadAsyncOperation privilege (Id=e84acc8f-0c61-43e3-a716-20964a483bdf) on OTC=4700 for entity 'asyncoperation' (LocalizedName='System Job') in Business Unit: XXX (Id=ed9518ce-3158-ed11-9562-6045bd905f30). context.Caller=2b3d073c-ca29-4281-a9a7-9f2e4cfd5d5f. Or identityUser.SystemUserId=2b3d073c-ca29-4281-a9a7-9f2e4cfd5d5f, identityUser.Privileges.Count=5809, identityUser.Roles.Count=0 is missing prvReadAsyncOperation privilege (Id=e84acc8f-0c61-43e3-a716-20964a483bdf) on OTC=4700 for entity 'asyncoperation' (LocalizedName='System Job')."}})."
I'm not sure where to look for the solution.