We have added Rate Limiting for Internal Notification action of workflows.
The current rate limits are
500 notifications / 5mins for each user (Per workflow)
In the case of email, its 500 notifications per 5 mins, per user email
In the case of SMS, its 500 notifications per 5 mins, per user's phone
In the case of in-app notifications, its 500/5mins per user Id
We will skip any notifications that are sent after breaching this limit.
Why was this done, and how will this help?
Because no limit was enforced, there were several updates made to a specific conversation of a user.
Let's say you put 300k contacts into a workflow
And in the internal notification you are sending a mail to a particular user (in most cases we have seen customers set up to send a notification to themselves)
Now this particular user mail, will get 300k emails.
Because of this, the conversation of this user will be updated 300k times, within a few seconds/minutes.
This introduced an overall delay in processing workflow actions.
The rate-limiting should have good gatekeeping for these events, and also prevent customers to send bulk emails to a particular user.
