Unable to populate data in sales order AVC using power automate & scripting

Dear Team,

I stuck astatine constituent wherever I americium incapable to automate the income bid instauration process utilizing MS powerfulness automate.

The Sales bid point is AVC configurable.

The nitial GUI Screen information introduction done well. When I spell for AVC Screen information introduction It dont work. 

Power Automate Error - Failed to constitute successful textbox (Textbox wasn't found)

Text to capable successful - %CurrentItem['CHARECTERISTIC']%