RENXT API - endpoint-level, rate-limit, throttling, or rolling-window limits?

Torie Wright
Torie Wright
Ninth Anniversary Facilitator 1 Name Dropper Kudos 1
in Blackbaud Raiser's Edge NXT® APIs

We have a SKY-API subscription and have a standard tier with 25,000 calls per day. I tried to ping the Action list endpoint: https://developer.sky.blackbaud.com/api#api=56b76470069a0509c8f1c5b3&operation=ListActionsAllConstituents

I attempted to paginate and get all records from this endpoint from the beginning, but after a certain number of successful calls (approx 30), I ended up getting a Quota limit error which restricted me from pinging that endpoint for several hours. 

I am a bit unsure why I am running into this error as the number of calls I am making is nowhere close to my daily limit. I also do automated scripts running every night pinging different endpoints and getting data for that day, but even adding those does not come close to the daily limit.

Can anyone please provide some insight into this? Specifically, I’d like to understand whether there are any endpoint-level, rate-limit, throttling, or rolling-window limits separate from the daily subscription limit.

Answers

  • Crystal Bruce
    Crystal Bruce admin
    Tenth Anniversary Kudos 5 2026 Spring PUB Altru First Reply

    Hi @Torie Wright tagging in @Alex Wong and @Erik Leaver to see if they can offer any insight!

  • Alex Wong
    Alex Wong Community All-Star
    Tenth Anniversary Facilitator 5 Kudos 5 bbcon 2025 Attendee Badge

    first question is how are you calling these API endpoint? Power Automate? or other automation platform or your own app?

    API limit is documented as 10 concurrent API per second and 25K per 24hr period, when exceeded, you should get 429 error.

    So next question is, what specific error message are you receiving?

  • Torie Wright
    Torie Wright
    Ninth Anniversary Facilitator 1 Name Dropper Kudos 1

    Hi @Alex Wong, thanks for your help!

    I am calling these endpoints via a Python Script hosted on an Azure Function App  that runs nightly.

    I am getting a 403 Quota Exceeded error.
    Just to note, the quota exceeded error I am getting is when hitting the actions API endpoint during the day and that is separate from the nightly runs that hit other endpoints. But all of the nightly runs do not exceeded the daily concurrent limit or the 25k limit

  • Alex Wong
    Alex Wong Community All-Star
    Tenth Anniversary Facilitator 5 Kudos 5 bbcon 2025 Attendee Badge

    If you are talking about the list action for all constituent API endpoint, the page error for 403 is not quota exceeded, it is Forbidden.

    image.png

    max actions per call for this endpoint is 5000, so if you are syncing more than 5000, you are calling the API endpoint multiple times in loop, so you might want to double check on which "loop" of your call is failing and if you have permission to all constituent record without limitation.

Categories