Cannot Determine attribute DDNMY

Hello Everyone!
    when i query the attribute DDNMY of DPPT this error will occur.

(2,231)   Cannot determine attribute DDNMY for element DPPT 1 of LDIMENSION
/064AD3014/S1/V1/GDP2/Dims/DOWN

my query is q ddnmy of (refno of dppt) the CE is LDIM. but when the CE is DPPT, the DDNMY attribute will display.

How to know the value of DDNMY even if the CE is LDIM?

Thanks in Advance!

If you know the sequence of the DPPT, then you can just query where LDIM is your CE;
Q DDNMY OF DPPT 1 - means you query the 1st DPPT member of LDIM, 2, 3 and so on...

Hi sir rhel! it works on DPPT 1 and 2 but when i try DPPT 3, the error stated above will display.

Maybe your DPPT has Nulref Design Element Reference (Deleted / Badref).