Custom Data KPI Graph

we are using addEvent optimize API flow service to publish data

  1. defined dimensions and Facts
  2. added hierarchy
  3. did event mapping
  4. added KPI with a Hierarchy

unable to see data for the above defined KPI in …
if no hierarchy is selected while defining KPI, we are able to see data

Product - Dimension
Region - Dimension
SalesAmount - Fact

KPI is sum of , Sales Amount
Hierarchy is Sales By Region By Product

also Is there any way to see KPI Data in a chart form , PIE chart would be best.