Error:- FRM-41014: Cannot set attribute of null canvas item D_SUM_FOLDER.GLOBAL_ATTRIBUTE1

Hi,

I am trying to make a DFF to be viewable only i.e. D_SUM_FOLDER.GLOBAL_ATTRIBUTE1 (FORM- APXINWKB) in AP Invoice workbench through form personalization. I modifed item propery (UPDATE_ALLOWED = FALSE), but the field is showing as updatable field and while applying the personalization it throw an error -

"FRM-41014: Cannot set attribute of null canvas item D_SUM_FOLDER.GLOBAL_ATTRIBUTE1."

How can i resolve this issue. Is there any other way to get this field as non updatable field?

Kindly help me.

Thanks a lot.

Regards

Niraj