Internal firewall prevents access to chat or case attachments - Amazon Connect
Internal firewall settings are preventing accessAttachments are too large, too many, or don't meet file type requirements

Internal firewall prevents access to chat or case attachments

This topic is for developers who need to investigate issues that may occur when using attachments with the chat channel in Amazon Connect, or when using attachments to upload files to cases.

The following issues may cause attachments to not display for your agents using Amazon Connect chat or Amazon Connect Cases.

Internal firewall settings are preventing access

Check that your firewall isn't preventing agents from accessing the files in your Amazon S3 bucket. You may need to add the Amazon S3 bucket where your files are stored to your domain allowlist. For more information, see Set up your network.

Attachments are too large, too many, or don't meet file type requirements

Check that the attachments meet the size, number, and file type requirements. For more information, see Amazon Connect feature specifications.

To calculate the size of an attachment (artifactSizeInBytes), use a third-party tool such as File.size.