252 Cannot modify this table.

Problem: Getting warning "Cannot modify this table."

When I try to edit the detail table of my one-to-one form.
Versions: All

Possible cause:
It is the default behavior to have the detail table in a 1:1 relationship read-only.
Solution:
To change this, view the form's data model and right-click on the detail table. The pop-up menu should show Read-Only with a check mark next to it. Click on Read-Only to un-check it. You will now be able to edit the detail table. Do not forget to save the form after this change.

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