We are sending emails using an AppSheet Bot, and we are currently on the Enterprise Plus plan.
As per our plan limits, we are allowed:
25,000 recipients per hour
50,000 recipients per day
However, starting yesterday, emails are no longer being sent to users, and we are receiving the following warning:
“Warning: Email failed to be sent. This is due to hitting a rate-limit quota or invalid recipients.”
Has anyone faced a similar issue? Can you please advise where we can check the email usage or quota used details?
Based on our understanding, we typically send only around 1,000–2,000 recipients per day, and there have been no recent changes or increases in usage from our side.
The automation should flag off a failed step due to crossing of the rate limit.
There should be numerical capture in the audit log of exactly which reason caused the rate limit exceeded failure because there are several limits (daily, hourly) mentioned in the relevant help article.
I believe that sending emails is one of the most or rather the most often used part of automation in overwhelming majority of the apps.
As such more definitive troubleshooting tools should definitely be available to the concerned app creator.
Request you to take up this additional troubleshooting tools part on top priority.
I got a notice from the support team that apparently the issue is caused by invalid recipients rather than a rate-limiting issue.
I found that if an AppSheet bot encounters an invalid email address, the email will not be delivered to any of the intended recipients, and the bot task will likely fail or log an error.
Also, if the issue were occurring with just one bot, that would be understandable. However, around 50–60 bots that we use are all facing the same issue. All of them are encountering the same problem
Thank you very much for your assistance in this issue.
Request you to use your good offices to take up the major issues such as this one with the development team.
This is so because, most of the community members except those on free plans can themselves open a ticket with the support team.
Typically serious issues as this one which may need changes to the underlying software itself, your help in taking it up with development team is much appreciated.
Thank you for your response—it helped us identify the issue more quickly.
I’ve shared a few clarifications with Support and am also posting them here to better understand the root cause:
We observed that the email automation issue is not related to invalid recipient email addresses.
When an invalid recipient is involved, AppSheet typically throws a clear error and explicitly lists the invalid email address.
In this case, however, the automation completed successfully, and the warning was visible only at the step-level details, not as a bot failure.
This behavior was observed across multiple apps and multiple bots, which rules out recipient-related issues. It is highly unlikely that all emails across all apps would fail simultaneously due to invalid email addresses.
Based on these observations, we believe the issue originated on the AppSheet side, and it is possible that it has already been resolved. Email delivery has resumed and is working without issues.
Can you please confirm whether there was any known issue or recent fix related to email automations during this period?
It will of course not help in eliminating the basic error. But it will help in knowing how many email recipients were sent an email in an hour. So the app creator can at least know if the cause of the error is really rate limit quota exceeded or not.
