What is ACTIVITY ID in Cosmos DB?

Question

What is this activity ID in CosmosDB? Usually I get a GUID while writing any wrong query in Query explorer in Cosmos DB.

I did a little bit of R&D on this and did not find enough information, and thus have posted this question.

Answer 1

What is this activity ID in CosmosDB?

This is a unique identifier for the operation. It can be used for tracing execution of Cosmos DB requests. Even you don't get wrong query, the activity id still exists in your request. If you query Azure Cosmos DB resources using the REST API, you also could see this value in response header. For more details, you could read this article .