Hi @Felipe Rodrigues , welcome to Microsoft Q&A forum.
If you are running a heavy load, then please make sure to adjust the throughput accordingly, otherwise you might see the requests being throttled. But there is nothing to inform anyone beforehand.
You can refer to troubleshooting documents in case you run into any issues:
Diagnose and troubleshoot Azure Cosmos DB request rate too large (429) exceptions
Please let us know if you have any other queries.