To import from Password Boss, you must export your records from there first.
Click File > Export Data.
Choose Password Boss JSON - Not Encrypted.
Navigate to where you want to save the file. Click Save.
Log into Keeper's web vault at https://keepersecurity.com/vault/
Click on your account email in the upper right-hand corner.
Click on Settings > Import.
Choose Password Boss from the list.
Drag the exported file into the target window "Drop a File Here"
Use the drop-down menu in each column to map to a Keeper field.
Click on Import.