curl --request PATCH \
  --url https://api.embedreach.com/api/resources/customers/batch \
  --header 'Content-Type: application/json' \
  --data '
{
  "resources": [
    {
      "customerId": "<string>",
      "email": "<string>",
      "phone": "<string>",
      "firstName": "<string>",
      "lastName": "<string>",
      "emailOptOut": true,
      "smsOptOut": true,
      "customerDetailUrl": "<string>",
      "createdAt": "2023-11-07T05:31:56Z"
    }
  ]
}
'

{
  "success": true,
  "message": "<string>",
  "data": {
    "batchId": "<string>",
    "message": "<string>",
    "recordCount": 123,
    "schemaDefinitionId": "<string>"
  }
}