Best answer

Amazon S3 error: We hit an error adding your new account, authentication failed

  • 21 January 2023
  • 4 replies

Userlevel 2

Hello! I am attempting to setup a Zap that triggers off of a new file getting added to an existing S3 bucket. The bucket is owned by my client, and they have set everything up on their side and provided me the Access and Secret Access keys to the bucket. 

When I go to make the connection in Zapier on the trigger step I receive a forbidden error. Pasted below. I am thinking that I am missing a step in the authorization process but I am not sure what it is or if I need to do something or ask my client to do something. 

Can someone confirm the steps and process needed to properly access the bucket?

Error that I am receiving (also attached)



Best answer by Troy Tessalone 21 January 2023, 20:29

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4 replies

Userlevel 7
Badge +14

Hi @ababab608 

Good question.

Try using a new/different private browser to connect the S3 app to Zapier here:

Make sure to reference the available help articles for using S3 in Zaps:

Userlevel 2

@Troy Tessalone thank you. Unfortunately I am still seeing the 404 forbidden error which makes me think I am not properly authorized to access the bucket. Would you have expected the new browser to work even though the buckets I am trying to access are owned by a different person?

Userlevel 7
Badge +14


Likely an issue with permissions.

You can try opening a ticket with Zapier Support for more guidance:

Userlevel 6
Badge +8

Hey ababab608,


Using the aws cli is kind of advanced, but if you feel comfortable you could verify that the keys give you access to it by calling an aws s3 ls command:

Here is how to install the CLI:

And you can set the keys with aws configure