To transfer working times (and projects) to bexio, the following requirements must be met. 1:
The employee must be linked to bexio.
The 2getHR activity types must be assigned to the bexio business activities and the 2getHR projects must be assigned to the bexio projects (see here: How do I link my bexio account to the 2getHR account?).
-> Under Time tracking / Managmenet / bexio you can see the transfer status.