Short Answer: Click '+ Add supporting data' link at the bottom right of the card and select the supporting file(s) from your device.
PreRequisites
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Be signed in.
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Have supporting file(s) ready on your device.
Steps
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Scroll to the bottom-right of the Books card to find '+ Add supporting data'.
You see the '+ Add supporting data' link. -
Click '+ Add supporting data'.
A file picker opens or the app provides a way to attach supporting files. -
Select the supporting file(s) in the file picker and confirm to upload.
Supporting data uploads and is associated with Side A or Side B.
Troubleshooting
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I don’t see '+ Add supporting data' on the page.
LikelyCause: You may not be on the correct card or lack permissions.
Action: Confirm you’re viewing the correct card, refresh, and check your permissions with an administrator. -
Supporting file upload fails.
LikelyCause: Network error or unsupported file type.
Action: Retry the upload, try a smaller file or different format, and check your connection.
Note: Supporting data is added separately from the main Side files.