PDR1037W
Using <REPOSITION> requires an action parameter of keep. The action parameter for field fieldname has been changed to keep.
What happened: You used a <REPOSITION> tag and an action that did not specify keep. <REPOSITION> only allows an action of keep.
What to do: If you need to modify the contents of the field and move it, you will need to delete it, and use an <ADD> to apply the modified text.