Update Char field (Vantage 6.1.533)

Trying to auto populate (part.character01) from part entry screen. I added the "part.character01" field to the form and then following code to the unload command.

SET part.character01 = {part.partnum.scrvalue}

Nothing will populate into the part.character01 field.

I can manually add information to the filed just not have it done on leave when someone goes into the part maintenance screen.
When I use MSGBOX {part.partnum.scrvalue} I can see that it is picking up the part number. I can copy to the clipboard using SET _cliptext = {part.partnum.scrvalue} just can not get it to copy into the "part.character01" field.
Is this not possible or is there another way to do this?


[Non-text portions of this message have been removed]