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Gateway attachment size limit

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Posted on by bevanmedley

HI All

I have a flow that scraps an email for text and attachments. Then passes through an on-premises gateway to an internal api using a custom connector.

This process completes fine as long as the attachment is under 3 Mb. If the attachment is over I receive the following error,

{

"message": "The request content-length is larger than '3182218' bytes. Current: '5046177' bytes.\r\nclientRequestId: ***",

"status": 413,

"error": {

"message": "The request content-length is larger than '3182218' bytes. Current: '5046177' bytes."

"source": "gatewayconnector

The API is successful using swagger internally with the larger attachment.

Is there a config file somewhere that restricts large file passing through the gateway, or am I on the wrong track.

Regards

Bevan

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FoDelement 435 on at

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Did you ever solve this issue? I am having the exact same issue.

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bevanmedley 20 on at

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HI FoDelement
No, I couldn't find any information to increase the limit. I ended up checking for attachment size and then landing the large files on an internal server (can pass these through the gateway to a file system but not to the api call...) along with a powershell script that was dynamically created with the api details. In the flow i ran a desktop flow ( unattended, need another licence for this) that ran the powershell script to call the api and upload the attachment, then delete both files.
Its a long way around but it works.

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CFernandes 8,402 Most Valuable Professional on at

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Hey Mate @bevanmedley

There is a limit on the Gateway attachment size limit.

https://powerusers.microsoft.com/t5/Power-Automate-Ideas/Remove-2MB-limit-of-Service-Gateway/idi-p/902127

If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search. If you liked my response, please consider giving it a thumbs up. THANKS!

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bevanmedley 20 on at

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Hey CFernandes

Thanks for the info, I did end up finding the limit but unfortunately no way to increase it.

Cheers
Bevan

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CFernandes 8,402 Most Valuable Professional on at

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Hello @bevanmedley

I hope you have upvoted the Idea.

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nitingupta4u 26 on at

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Hi,
I am facing the same issue even when the limits are upgraded to 20 mb

https://docs.microsoft.com/en-us/data-integration/gateway/service-gateway-onprem

Nitin

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zarski 168 on at

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Hi, we have the same issue. Can anyone help?

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Community Power Pla... on at

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Hello, same error, the limit is obviously not corrected, or there is another issue in place. I have the same limit 3182218 on up-to-date gateway.

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zarski 168 on at

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Hi, I contacted MS support and they are looking into it. I'll let you know when I know more.

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Community Power Pla... on at

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Me too and I just got the response. The documentation is plain wrong, here is the part of the support email:

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