Colon usage in CASE

The last possibility on a CASE statement must be immediately followed by a colon. Bad code

CASE DimOption OF
DimOption::"Global Dimension 1" :
DimValue."Dimension Code" := GLSetup."Global Dimension 1 Code";

Good code

CASE DimOption OF
DimOption::"Global Dimension 1":
DimValue."Dimension Code" := GLSetup."Global Dimension 1 Code";