Inventory and assign cost centers
Pull the full account / project list from your cloud billing export. Map each one to a four-digit cost-center code following the format cc-NNNN. Park the registry in version control.
{
"cc-1001": {"name": "Engineering", "owner": "platform-eng-lead"},
"cc-1002": {"name": "AI Research", "owner": "ai-lead"},
"cc-1003": {"name": "Finance", "owner": "cfo"},
"cc-1004": {"name": "Customer Ops", "owner": "coo"},
"cc-1005": {"name": "Marketing", "owner": "cmo"}
}