Cost optimisation

Allows us to view your bill and help you suggest ways to save money

Need: Customers struggle to control their Cloud bills

Feature: We have the expertise to analyse the bill and suggest recommendations

Benefit: Customers can reduce costs

How to allow us to look at your bill

You need to trust our AWS account account with “billing” permissions.

Step 1: Activate IAM user and role access to the Billing and Cost Management console

Create a new role, called for example “corexpertcheck” and choose Another AWS account for type of trust:

Trusting another AWS account

Corexpert’s account is 373957390983. Now add the Billing permissions or a subset of those permissions. We are reliant on Cost Explorer, aka ce:* permissions to better understand spend. CloudWatchReadOnlyAccess permissions would also be useful, so for example S3 buckets can be better examined via metrics. Once the role is created, your trust relationship should look like:

  "Version": "2012-10-17",
  "Statement": [
      "Effect": "Allow",
      "Principal": {
        "AWS": "arn:aws:iam::373957390983:root"
      "Action": "sts:AssumeRole",
      "Condition": {}

Now please email us with the Role ARN, so we can assume it, and have a look at your bill to identify any cost savings.