ECM Permissions
By installing the app, the "EASY Invoice Connector" permission is added to Business Central.
The user permissions must be assigned to any user working with EASY Invoice. The access rights are always allocated in accordance with the system administrator or directly by the administrator.
Web service users must have permission to create unposted purchase invoices or purchase credit memos.
For detailed information about user permissions, click here: https://docs.microsoft.com/en-us/dynamics365/business-central/ui-define-granular-permissions