Standard Attribute SET is not triggered when value copied from another component

Hi All,

Requirement is to Pass value from BP to Lead (BTDOCFLOW-OBJKEYA).

Successfully passed the value to Lead attribute. GET_OBJKEYA is changed to show the value in the screen.

The value is appearing in Edit mode. After saving the value diappeares in OV page. While debugging SET is not triggered.

And if Enter is Clicked on the attribute(in edit mode) then SET is fired and the value is saved, displayed in OV.

When I tried calling SET method in DO_PREPARE_OUTPUT then system thrown the following error- "No document found for production of Object interlinkage"

Kindly suggest how to resolve this issue.

Regards,

K Nalini