Steps
Navigate to Music > Digital Releases from the left sidebar.
Click Create Digital Release or select an existing one.
For a new release, select Attach to Existing Products. For an existing release, click Attach in the upper right corner.
Search for a product in your Shopify inventory that you want to bundle with your music release.
Configure the settings as follows:
Attachment Type: Pick the product format (like CD or Digital).
Reporting Type: Select the type of product the digital release is being attached to (like Merch, Physical, Digital).
UPC/EAN: If you've entered a SKU in Shopify, we'll pull that in. If not, enter it now.
Managed Fulfillment: Turn this on only when there are no physical components. This tells the system to mark the Shopify order fulfilled when the release is delivered.
Deliver to Existing: This option delivers the release to past purchasers of your Shopify product.
Click Create Attachments
Things to note:
If you have a physical product already set up for reporting in the Physical Reporting section, you won't find that product when searching in the Attachment Queue. First remove the product from the Physical Reporting section, then you can attach the digital album and specify reporting.

