Date Filter for unv universe prompt - 5 years

Hi Experts,

I got a requirement for a univers .unv based on BEX query to build a filter which filter date between date prompt - 5 years to date prompt.

The dimensions on the universo available are:

[0CALMONTH].[LEVEL01].[NAME] -> "yyyymm" (character defined)

[0CALYEAR].[LEVEL01] -> "yyyy" (character defined)

[0FISCPER3].[LEVEL01].[NAME] -> "mm" (carácter defined)

The prompt I need with the following format: "mmyyyy". I don't know how to build a dimension with this format on bex universo. with the dimensions above detailed. Can I concatenate them?

For the filter, I tried something like this:

@Select(Date yyyymm) between dateadd(y,-5,@Prompt('Date(aaaamm):','A',,mono,free)) and @Prompt('Date(aaaamm):','A',,mono,free)

When I include the filter on reporting I got an API internal error:

processDPCommandsEx (Error: ERR_WIS_30270)

Any idea how con I work on it?

Thank you