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multiple users same Study Subject ID


Has anyone ever experienced a problem using the auto-generate option for Study Subject ID? When multiple users are logged in to different sites of the same study and trying to add subjects, the Study Subject ID field is populated with the same number. When the second user submits the form to create a subject, they get an error "Another subject has been assigned this Study Subject ID. Please choose a unique identifier." I understand that this only happens if a user clicks Add Subject before another user has submitted their Add Subject form, but it has been coming up for us.

Any suggestions to get around this issue?


Julie Medalie
University of Maryland, DEPH
10 South Pine Street MSTF 257
Baltimore MD 21201
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