The short answer is yes, you can close a CAPA while a linked Event is still ongoing. However, Scilife will display a warning message as well as demand that a reason is provided as to why the CAPA is being closed while a linked Event is still open.
The pop-up below will be displayed when a QA decides to close the CAPA with an open Event linked:
If QA decides to move forward and press Yes, the pop-up below will appear. Here QA will need to provide a reason why the CAPA is being closed while a linked Event is still open.