Every workflow needs a unique set of IAM policies depending on the AWS Resources involved and the actions performed.
Once you have finished creating your workflow, click on Re-Validate at the top of the Editor.
A red-cross with Validation Failed next to it means that your workflow does not have the required IAM policies to execute.
Click on the Required Policies button to see the policies needed.
Copy the policies by clicking Copy to Clipboard, and then open IAM on your AWS Management Console.
Click Users/Roles depending on how you configured AWS access to TotalCloud. Select the User/Role attached to your account. Click Add Inline Policy.
Click JSON, and replace the code in the Editor with that copied from Required Policies on the TotalCloud WebApp. Click Review Policy.
Add a name for the policy, and then click Create Policy.
Go back to the TotalCloud Editor and click on Retry Validation. You will now get a green-tick and Validated next to it.