Pass Variable from prompt to script logic

Hi,

I try to pass variable from prompt to script and it doesn't work.

I work on BPC 10 SP13.

If someone can help me, I would be very grateful to him.

I try this :

In script logic:

*XDIM_MEMBERSET ACCOUNT=BEPS017

*XDIM_MEMBERSET CURRENCY=LC

*XDIM_MEMBERSET CATEGORY=ACTUAL

*XDIM_MEMBERSET TIME=%TIME_SET%

*WHEN ACCOUNT

*IS BEPS017

      *REC(EXPRESSION=%VALUE%*2,7),CATEGORY=MYCATEGORY)

*ENDWHEN

*COMMIT

In the Modify Script :

PROMPT(SELECTINPUT,,,"Please select period (Base level members)",%TIME_DIM%)

PROMPT(TEXT,%MYCATEGORY%,"Please select category")

TASK(Execute formulas,USER,%USER%)

TASK(Execute formulas,Environment,%Environment%)

TASK(Execute formulas,Model,%Model%)

TASK(Execute formulas,SELECTION,%SELECTIONFILE%)

TASK(Execute formulas,FORMULASCRIPT,*FUNCTION MYCATEGORY=%MYCATEGORY%)

TASK(Execute formulas,LOGICFILE,%ModelPath%\..\AdminApp\%Model%\file024.lgf)

TASK(Execute formulas,RUNMODE,1)

TASK(Execute formulas,LOGICMODE,1)

TASK(Execute formulas,CHECKLCK,%CHECKLCK%)

Thank you for your help