Due to the fact that the Box cloud service has decided to discontinue the support of the WebDav protocol on Jan 31, 2019, we can not any longer support Box cloud services direct in Penmap for Windows and Penmap for Android.
You will find more information form Box here.
As alternative you can use Trimble Connect to sync your data.
There is a free of charge subscription of Trimble Connect available (Trimble Connect Personal). If you need more space or user you can also order Trimble Connect Business. Check out here.
Trimble Connect Business is included in the Penmap for Android subscription!