Hidden and protected by default point unregistered static value?

Hello

a form of DML, I have a hidden and protected from the text field component. I have these settings:

Source:
Still, replacing value that exists in session state
Static assignment (the value corresponds to the attribute of the source)
By session
PARTY_SC (Source value or expression): this is the column name
After calculation of calculation (Nothing)

By default:
Default value: 'FOR '.
By default the value Type: static text with Substitutions of Session State

What I'm trying to achieve is to set the value of this field (element) before I / U in the database. However, this does not wotk as the Session value of the item remains NULL and whan pressing record button of database of course she rejects with msg: ORA-01400: cannot insert NULL into «WEBPOS» «PARTS '.» "" PARTY_SC ". Cannot process the PARTIES of the table line. Back by demand. There is also a validation rule for the value null in the processing of the Page for this field.

No idea why and how solve it?

TIA

Helllo

If you use the automatic treatment of the line (DML) to insert into the table and then Type 'Source' for the page element corresponding to "PARTY_SC" should be "Database column".

CITY

Tags: Database

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