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Started by Leandro Michelena • May 26, 2025 2:16 PM

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2:16 PM

May 26

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Leandro Michelena2:16 PM

Hi everyone! We're having an issue with a private app serverless functions as the number of users within the account is growing:
Your account has reached its concurrency limit of 100 for APP_FUNCTIONS. Try again later.

[runServerlessFunction] The serverless function 'fetchOwnerById' failed to execute: com.hubspot.apicaller.exceptions.ApiFailure: Api[name=app-functions-executor-client, httpMethod=POST, subPath=/v1/app/3054724/function/fetchOwnerById, correlationId=5564eb0d-2a39-41f1-8120-5611a4d4998a] Failed to process your request. Error code was '429'. Error message was:
{"status":"error","message":"{\"status\":\"error\",\"message\":\"Your account has reached its concurrency limit of 100 for APP_FUNCTIONS. Try again later.\",\"correlationId\":\"5564eb0d-2a39-41f1-8120-5611a4d4998a\",\"context\":{\"SERVERLESS_FUNCTION_CONCURRENCY_LIMIT\":[\"100\"],\"SERVERLESS_NAMESPACE\":[\"APP_FUNCTIONS\"]},\"category\":\"RATE_LIMITS\",\"subCategory\":\"ServerlessConcurrencyLimitErrorType.FUNCTION_CONCURRENCY_LIMIT\"}","correlationId":"5564eb0d-2a39-41f1-8120-5611a4d4998a"}.

Does this mean that at any point, we shouldn't have more than 100 serverless functions running across all projects and private apps within the account? How can we handle a growing number of users?
If anyone had similar issues before, what are the possible ways around it? Thank you 🙂

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2 messages in thread

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Leandro MichelenaReply 1May 26, 2025 2:20 PM

<@U04EJHVD8FM> hi! Are you aware of this limitation? And do you have suggestions? Thanks!

L

Leandro MichelenaReply 2May 27, 2025 12:47 PM

I realized our code had an `await Promise.all(promises)` that created several concurrent requests for the same user. Fixing this card will remedy the ...