If you're seeing a "rejected" status on one of your document requests, you can review the notes sent by your trading partner by clicking the Info icon.
Reviewing the requested document
If you need to review the actual document requested, click the hyperlink in the "Document Type" column.
Re-upload your document
After making the requested changes, simply re-upload your document to the rejected request. After your upload is complete, your trading partner will be notified that a new document has been added to their request.