Upload of AUC through AS91
we are uploading the asset master data through the T.code AS91, there is no problem. But while uploading Asset under constuction through AS91 , it is aking capitalisation date. we check the screen layout rule for asset master data it is right and this screen layout rule is used for t.code AS01 not for AS91.
Please help me how to make capitalisation date field from required entry to optional entry in AS91.