Consolidation Aborted

@MEMBER(

Summary

Consolidation Aborted

Content

Hi All,

I have a problem with a consolidation.

I created a specific rule in order to obtain the difference of a specific account between two months:

"CFS200A161" -> "CFCLO" = #Missing;
  "CFS200A161" -> "CFCLO" = "2B10200000" -> "FCCS_ClosingBalance" - "2B10200000" -> "FCCS_ClosingBalance" -> @MEMBER(@PREVSIBLING(@CURRMBR("Period")));

The error is the following:

attempt to cross a null member in function [@X]

I think that the problem is related to the function @MEMBER(@PREVSIBLING(@CURRMBR("Period")))

Thanks,

Antonio