We implemented the change notifications subscription for channel messages as per the Microsoft Teams guidelines. We received the messages within 1 minute until 12-July-2021. Now we see a latency of about 2 - 15 minutes for sometimes notably on PST day time.
According to this link (https://learn.microsoft.com/en-us/graph/webhooks#latency) channel messages will be notified within 1 minute.
Could you please let us know what is causing this delay serving the request ?
We would also like to know if there is policy or priority on serving the notifications based on tenant type.
Thanks in advance.