We want to make sure that if we have exceeded the daily API limits, we don't proceed further. So we are using the limit API for the same. Does it return any status code when the organization has exceeded the daily API limit something like 503? Salesforce documentation hasn't explicitly mentioned it anywhere.


Do we have something like that?

Thanks in advance!!

  • 2
    UI API Dev Guide states the following; The User Interface API uses the Salesforce API limits. When you exceed the rate limit, all User Interface API resources return a 503 Service Unavailable error code.. Does this answer your question?
    – arut
    Commented Oct 13, 2020 at 6:35

1 Answer 1


I tried exceeding the daily limit in my developer org. So, when the daily API limits of the organization were exceeded, I tried hitting the API again. I got the error Total request limit exceeded with 403 status code which is also correct as per the screenshot attached below from Rest API Guide.

enter image description here

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