Not working for blesta 3.6 & blesta 4
Blesta 4 is not currently listed as one of the supported scripts which ImportAssist can import.
However Blesta 3.x is supported and I am not aware of any problems with version 3.6 specifically. Please open a support ticket so we can investigate: http://www.whmcs.com/support/
I'm pleased to advise support for Blesta 4 has now been added!