curl --location -g --request GET 'https://advertising-api.amazon.com/amc/reporting/{{instanceId}}/workflows/my-first-workflow' \
--header 'Amazon-Advertising-API-ClientId: {{client_id}}' \
--header 'Amazon-Advertising-API-MarketplaceId: {{marketplace_id}}' \
--header 'Amazon-Advertising-API-AdvertiserId: {{advertiser_id}}' \
--header 'Authorization: Bearer {{access_token}}'
{
"sqlQuery": "SELECT campaign_id,SUM(impressions) AS impressions FROM dsp_impressions GROUP by campaign_id",
"workflowId": "my-first-workflow"
}