Powerautomate (send a card to a teams channel) Rate limit

Question

Hi,

I am currently migrating a lot of teams connectors to the teams Workflows app

One particular workflow does the following

• When a Teams webhook is received
• Apply to each
  • Post card in a chat or channel

The workflow works fine most of the time as notifications trickle in throughout the day however there are rare times when a burst of requests (100 - 120 )are sent to this webhook in at a rate of around 4 per second.

When this occurs we are hit with a rate limit exceeded response when posting the card to Teams after the first 25.

Is this the limit for workflows posting a card to a teams channel?

I can't find any clear documentation with these limitations defined, any help or advise on this issue would be appreciated.

Answer 1

Mahoney, the limits are posted here: Microsoft Teams - Connectors | Microsoft Learn

There are concurrency options on the trigger that you can adjust which would likely prevent from hitting these limits:

Limits of automated, scheduled, and instant flows - Power Automate | Microsoft Learn

If you've disabled concurrency and are still hitting the limit, you can try introducing some delays within the flow itself.