15. How do I make changes in my CRF page?

Execution phase: Data entry/data upload : Manage a Study

If you want to modify a CRF after data entry has started for the study, please use the 'create new version’ option. Do not upload a new CRF if you want to change something in the current definition CRF.  If a new version of the CRF is created, this will enable data that were collected in a previous CRF version to be migrated to the new CRF version (see FAQ 16).
There are limitations to the type of changes that can be readily made to a CRF however, see FAQ 6.