# Semantic Conventions for Google Cloud Pub/Sub **Status**: [Experimental][DocumentStatus] The Semantic Conventions for [Google Cloud Pub/Sub](https://cloud.google.com/pubsub) extend and override the [Messaging Semantic Conventions](README.md) that describe common messaging operations attributes in addition to the Semantic Conventions described on this page. `messaging.system` MUST be set to `"gcp_pubsub"`. [DocumentStatus]: https://github.com/open-telemetry/opentelemetry-specification/tree/v1.26.0/specification/document-status.md