I have created a shared variable in a formula on my sub-report as follows.

//stores the maxsumdivision VARIABLE for sharing with main report. The variable diplays the correct data on the sub report.

Whileprintingrecords;
shared numbervar maxsumdivision:= Maximum ({@division status})

I have attempted (without success) to share this variable in a formula and see it on the main report so I can use it there.

// maxsumdivision VARIABLE from component shipment sub report

whileprintingrecords;
shared numbervar maxsumdivision;
maxsumdivision := maxsumdivision;

I have never attempted shared variables before so used some formatting that I have seen online without success. I have no idea if the whileprintingrecords statement needs to be there or not. I also am not sure of the proper syntax. Any help is greatly appreciated.

my sub report is in group header 1
and my main report variable is in group footer 1

would this be why my variable = 0 as opposed to 1 as it does in the sub report

the subreport is "on demand"