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Overview

Once a buyer’s entitlement is registered, usage reporting runs automatically. You do not call Flexprice again for that buyer unless their subscription changes. Flexprice reports usage against your product’s single usage metric via the Service Control API. GCP then invoices the buyer and pays you out.

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What Flexprice Meters to GCP

The amount reported to GCP is the same billable amount that appears on that subscription’s Flexprice invoice for the same period. It is computed with the same rules, so GCP bills what Flexprice bills. That means the reported amount already accounts for:
  • Usage-based charges across every meter on the subscription
  • Commitment amounts, where the subscription has a committed spend
  • Overage rates, where usage exceeds the commitment
The amount is reported in cents against your single usage metric. With the metric priced at $0.01 per unit, GCP multiplies it back into the exact amount, down to the cent. See Create Your GCP Marketplace Listing.

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Retries and Failures

Reporting recovers from transient failures on its own.
  • Reports are safe to retry. Each report carries a fixed operation ID, so a retry is an identical request and GCP de-duplicates it rather than billing twice.
  • Unaccepted reports are retried. Service Control’s API can return a 200 OK and still reject a report; Flexprice checks for this and leaves rejected reports unreported so they are retried on the next run. No action is needed from you.
  • A rejected buyer resolves itself. If GCP reports the entitlement is not active, reporting keeps retrying and succeeds once the buyer’s entitlement is active again.

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Handling Marketplace Lifecycle Events

Flexprice does not learn about GCP-side changes to a buyer’s subscription. You handle these.
If a buyer cancels on GCP and you leave their Flexprice subscription active, Flexprice keeps computing usage for it and attempting to report it to GCP. Cancel the Flexprice subscription to stop this.
To detect these events, subscribe to your product’s Procurement API notifications in your own application. Flexprice does not subscribe to them.

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Troubleshooting

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Next Steps

Connection Setup

Set up your GCP listing, Workload Identity Federation, and Flexprice connection.

Agreement Registration

Link each buyer’s GCP entitlement to a Flexprice subscription.