Golom,
I have tried your example... And I'm still having troubles... I keep getting syntax errors...
This is what I got:
DoCmd.RunSQL "INSERT INTO WWRHistoryPrep (WWRID, IID, AllocMstr) SELECT WWRID, IID, IIf(Nz([Allocated])<>"", [IID] & RemoveSpace([Allocated]), [IID] & [Allocated]) AS...