I;m confused !!!

I’m basicaly an Electrical Engineer from the State Electricity Utility Sector.
I’ve 3yrs of experience in Construction of HV lines, LT lines, Primary Sub Stations etc. and also hands on experience of Purchasing of Materials.
I’m in confusion what module or course on SAP is going to add some value on my Resume & ‘ll create some best opertunity.

So please help me….