Need a example policy file for Email notification with Azure logic app

[pruthvibs16]

We have a requirement, where we need to fetch the cost of the every keyvaults in our organization and then send a outlook email about the cost usage. Used c7-org to run the policy against multiple subscriptions. We are planning to use logicapp webhook to trigger the email.

Problem is: we have around 250 keyvaults and policy file and logic app triggerring 100 emails. We need to consolidate them into a single email. Please help to create a custodian policy file to list the Azure keyvaults with associated costs and notify through a single email using logic app webhook. This policy have to consolidate multiple keyvault details into single payload sent to the logicAPP, which can then process and send a single email.

Policy file which triggere multiple emails:
`policies:

• name: Keyvault_cost_actions
  description: |
  Get the usage cost of the keyvaults for 1 day.
  resource: azure.keyvault
  filters:
  • type: cost
    timeframe: 1
    op: gt
    value: 0
    actions:
  • type: webhook
    url: https://prod-42.eastus.logic.azure.com:443/workflows/46244c002d1e408b9a26293cc504b7f8/triggers/When_a_HTTP_request_is_received/paths/invoke?api-version=2016-10-01&sp=%2Ftriggers%2FWhen_a_HTTP_request_is_received%2Frun&sv=1.0&sig=or035Fxzzr5kCkg--aM5NsqUvt_799zmnM-h8sqNP8U
    body: >
    {
    PolicyName: policy.name,
    PolicyDescription: policy.description,
    resources: resource.
    {
    ID: id,
    Name: name,
    Type: type,
    Location: location
    }
    }`