# Known limitations for the Amazon Q Business ServiceNow Online connector
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The ServiceNow Online connector has the following known limitations:
+ There is no REST API to wake up your ServiceNow instance. To activate it when it's in hibernation mode, log in to the your ServiceNow instance.
+  Because Amazon Q Business uses email address as unique identifiers, each user must have a unique email address. 
+ We don't support ServiceNow access controls.
+ We don't support ServiceNow user criteria.
+ Only the following ServiceNow roles are supported for incidents: 
  + ITIL: This role provides broad access to incident management functionality.
  + Custom roles: You can create custom roles with specific incident access permissions.