Created a Page and Added a Table COmponent Related to Business Object. Added a Custom Button to voke

Summary

Created a Page and Added a Table COmponent Related to Business Object. Added a Custom Button to voke a Rest API. Rest API Parameter needs to be mapped to COlumn on Selectred Row from Table COmponent

Content

I created a Page and Added a Table Region, Creatre Page and Edit Page.

 

Added a Custom Button on Main Page.

 

Custom Button has to call a Rest API and the Parameter for Rest API needs to be Mapped to Column on Selected Row .

 

Not sure How I can refer column on Table Region.

 

{{ $page.variables.oj_table_1651387367_2SelectedId.keyID }}

 

Can some one Advise.