update J_3GLABRECH form KNA1 TABLE

Hi all,

I want to use J_3GLABRECH field (Date of Last Settlement) in customer master data . i could not found this fiield in customer master data .while seeing customer table KNA1 there is field J_3GLABRECH i don't know how to update this field .

Please guide me how to update J_3GLABRECH field (Date of Last Settlement) so i can use this field for reporting .

Thanks in advance.

Bhushi