To link your Withings, go to Settings>Tracking & Devices> Connect a Device and then select Withings! From there you just have to login into your Withings account.
For best results, keep your Withings app open as well (in the background).
Once you have linked you Withings account to Olumia it can take 2-10 minutes to pull in your step data, but once it’s connected it should update automatically on a frequent basis! So, please know there might be just a little delay at first.
If there is an issue with the connection, try going back to the Connect a Device section and refreshing.