I’ve been able to get a Cost Element Hierarchy built by using the appropriate group and leaf tables.
However, in our Cost Element Hierarchy, there are some gl accounts mixed in. These are missing from our flattening efforts as I validate the leafs to the cost element table and of course, these gl accounts do not exist in the cost element table.
Have had no help from our SAP reps on understanding how to differentiate a gl account from a cost centre as it applies to the Cost Element Group.
Any one else have to deal with an issue like this? If so, how did you resolve it?
BobbyOrr 
(BOB member since 2009-06-16)