While COEUS will allow the upload of any file attachment format, only PDF formatted attachments can be viewed by Approvers in the approval routing chain. Also, when submitting proposals system-to-system, Grants.gov requires use of PDF file formatted attachments.
The NIH has developed these PDF attachment guidelines to assist in successful system to system proposal submissions.
For questions about COEUS, please contact email@example.com. For questions about proposal preparation, please contact your Grant Officer.