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Cognite Function input limits

  • August 6, 2025
  • 1 reply
  • 22 views
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Hi 

When testing some new functionality in a Cognite Function I got this error message: “The size of the data field is too large.”

The data input was from the output of another function ran previously in a workflow.

I am looking through the documentation to find what the limits are, but can not find anything.

For my use case I can decrease the input size and run more batches, but it would be good to know what the size limits are for input data into Cognite Functions. Also, are there any other size limits I should be aware of?

Thank you!

Sebastian

Best answer by Everton Colling

Hi ​@sebastianheibo.akso!

The limit you are after is based on the underlying limitation from the cloud provider in which CDF is deployed to and can be checked in the public docs here as “Function call data payload size”: https://docs.cognite.com/cdf/functions/technical

This “size” applies to the object that you pass to the “data” argument when calling a Cognite Function.

1 reply

Everton Colling
Seasoned Practitioner
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  • Everton Colling
  • Seasoned Practitioner
  • Answer
  • August 6, 2025

Hi ​@sebastianheibo.akso!

The limit you are after is based on the underlying limitation from the cloud provider in which CDF is deployed to and can be checked in the public docs here as “Function call data payload size”: https://docs.cognite.com/cdf/functions/technical

This “size” applies to the object that you pass to the “data” argument when calling a Cognite Function.

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