This policy is used on the storage account of the Data Lake. This will ensure new data in the dls/05_store/_archive folder of the lake is automatically assigned to the cool access tier.

data_lake_sta_lifecycle_policy_rules.json

{
  "rules": [
    {
      "enabled": true,
      "name": "daily-moving-data-lake-store-archive-to-cool",
      "type": "Lifecycle",
      "definition": {
        "actions": {
          "baseBlob": {
            "tierToCool": {
              "daysAfterModificationGreaterThan": 0
            }
          }
        },
        "filters": {
          "blobTypes": [
            "blockBlob"
          ],
          "prefixMatch": [
            "dls/05_store/_archive"
          ]
        }
      }
    }
  ]
}