Custom parameter and issue with reports

Custom parameter and issue with reports

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HI All,

We  have implemented Custom parameter under Universe connection in BO 3.1 SP5  and reports works fine and same universe and reports migrated to BI4.1 Sp6.

ConnectInit=SET QUERY_BAND='APPL=myapp; USER=@variable('BOUSER'); RptName=@variable('DOCNAME'); UnivName=@variable('UNVNAME'); . FOR TRANSACTION;

In BI 4.1 webi reports throws error that "Bad Connect String Format:USER" while refreshing report.

Any suggestions

Regards

Reddy