{"source":"semconv","version":"1.44.0","attribute":{"id":"messaging.batch.message_count","type":"int","stability":"development","brief":"The number of messages sent, received, or processed in the scope of the batching operation.","note":"Instrumentations SHOULD NOT set `messaging.batch.message_count` on spans that operate with a single message. When a messaging client library supports both batch and single-message API for the same operation, instrumentations SHOULD use `messaging.batch.message_count` for batching APIs and SHOULD NOT use it for single-message APIs.","examples":["0","1","2"],"namespace":"messaging","definedIn":"model/messaging/registry.yaml","usedBy":[{"groupId":"messaging.attributes.consumer","groupType":"attribute_group","requirementLevel":"conditionally_required"},{"groupId":"messaging.eventhubs.generic.client","groupType":"span","signalName":"messaging.eventhubs.generic.client","requirementLevel":"conditionally_required"},{"groupId":"messaging.process.consumer","groupType":"span","signalName":"messaging.process.consumer","requirementLevel":"conditionally_required"},{"groupId":"messaging.receive.client","groupType":"span","signalName":"messaging.receive.client","requirementLevel":"conditionally_required"},{"groupId":"messaging.send.client","groupType":"span","signalName":"messaging.send.client","requirementLevel":"conditionally_required"},{"groupId":"messaging.send.producer","groupType":"span","signalName":"messaging.send.producer","requirementLevel":"conditionally_required"},{"groupId":"messaging.servicebus.generic.client","groupType":"span","signalName":"messaging.servicebus.generic.client","requirementLevel":"conditionally_required"},{"groupId":"messaging.settle.client","groupType":"span","signalName":"messaging.settle.client","requirementLevel":"conditionally_required"}]},"history":[{"version":"1.30.0","publishedAt":"2025-01-24T19:11:42Z","kind":"first-seen","detail":"Already present at v1.30.0, the oldest release tracked here (experimental)."},{"version":"1.31.0","publishedAt":"2025-03-11T00:53:13Z","kind":"stability-changed","detail":"Stability label respelled from experimental to development.","severity":"informational"}],"replaces":[]}