When attempting to upgrade or install a ZCA in AWS running 7.5, the following error is presented:
This error lists each missing permission from either IAM, EC2, and S3 with a comma in between each permission.
This list can also be found in the Zerto Installation Guide for AWS starting on Page 32. The list is in JSON format which can be used to create the IAM Role policy to attach to the ZCA.
Add all permissions listed in your particular error output to the IAM Role that is assigned to the ZCA and try again.