
I have a form in my Power Pages app that is linked to a table.
But when I submit this form, the Created By column is being filled with text "PowerPages Data Runtime PROD, #" instead of the current authenticated user.
Is need some kind of configuration to fill this column with the authenticated user?
There is no way to populate the created by (or modified by) with the portal user. What you can do instead is capture the Portal User in a Contact Lookup (and or their Account in an Account lookup), you add the lookup to the record in question and then configure the respective form either by its settings or adding a form Metadata record to the form in question - in doing so in the create/update transaction you get the fields that are updated and also the portal user recorded.
https://learn.microsoft.com/en-us/power-pages/configure/basic-forms#additional-settings