The Subject ID pattern decides how subject IDs are generated when new subjects are added to your study. Choose it before your first subject exists, because it shapes every ID that follows.
Available formats
Format | What you get |
Center-incremental (default) | The center name plus an incremental number, for example |
Incremental only | Sequential numbering with no center name, for example |
Free text | Whoever adds the subject types the ID themselves |
Custom pattern | Your own format, built from the placeholders below |
For a custom pattern, three placeholders are available: {center} for the center name, {incremental} for an incremental number, and {free_text} for manual entry. You can mix them with letters (A to Z) and digits (0 to 9), so SC-{incremental} produces SC-0001.
Configure the pattern
đ ď¸ Step by step guide
Go to Study settings.
Open the Options tab.
Select your Subject ID pattern.
Click the eye icon to preview the result before committing.
Click Save.
đĄ Tip: two things worth knowing about the IDs you end up with.
While the study is in Draft, a D is inserted after the prefix, so
SC-0001becomesSC-D0001. That is how you tell test subjects from live data at a glance.Every subject also has a Platform ID, unique across the whole of Datacapt. That is the one that identifies the same person across several studies, which matters most to CTMS users.