The number of total incidents between Visual Command Center (VCC) and the Manager Portal do not match.
Role permissions might not allow access to all contacts and incident templates used.
Ensure the VCC Incident Operator has:
The correct level of permissions level of permissions to incidents. Reference the following Knowledge Base Article 000009527 - How to Assign Incident or Scenario Templates to Users With the Incident Operator Role in Everbridge Suite for more information on this.
Access to contacts in the Manager Portal. The following Knowledge Base Article 000005330 - How can users be assigned access to specific groups in Everbridge Suite? provides instructions on how to view and edit access.