Hi, I got stuck on page 28  mapping Vendor spend from Cost pool. I don't seem to be able to allocate any costs. 

I don't have access to that environment, but I'd check the allocation line from Cost Source to Vendors. See how it's configured: there might be a column on either side (Cost Source or Vendors) that is empty, or doesn't match the other one.

Otherwise, the Training people should be able to help you (@Jenny Goodwin)