Give participants app access codes
The unblinded administrator opens App codes, saves the app settings, pastes the codes in Add codes, then clicks Assign code for each participant and Show in portal or records how the code was handed over.
Where to find it
App codes (left menu)
Before you start
- The App access codes module is switched on.
- You are the Unblinded Administrator. Codes are tied to treatment arms, so the page is unblinded.
Set up and assign codes
Open App codes from the left menu.
In Settings, fill App name, tick the Arms that receive a code, write the Instructions for the participant and click Save settings.
In Add codes, paste the codes, one per line, and click Add codes.
Codes must be 4 to 64 characters with no spaces. Duplicates are skipped.
In Participants, click Assign code next to a participant.
Click Show in portal so the participant sees the code, and/or Record hand-over (by phone, email, letter or in person).
Common messages
- "No app access codes left. Upload more codes.": paste a new batch in Add codes. The Codes left tile turns amber below five.
- "Participant ... is not randomized.": codes go to randomized participants in the chosen arms only.
- "Access Denied": only the Unblinded Administrator can open this page.
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Still need help?
Email support@capture.study or use the contact form. Tell us the study name, what you were trying to do and the exact message on screen; a screenshot helps.
Please never send participant names, contact details or health information to support.