In order for ChannelMix to gain access to your Amazon S3 or Amazon Simple Storage Service, you'll need to first share your access keys within the Connect page of ChannelMix Control Center.
While on the Connect page, please click on the Amazon S3 image.
Then, enter in the Connection Name. This is a free form text to describe the S3 bucket you are providing access to.
Next we'll need your AWS access key ID and AWS secret access key. More information on obtaining these keys can be found in this User Guide article from Amazon.