Hi,
You should be able to change the document id. Are you sure you changed all the rows in orbeon_form_data with the "old" id? I am asking, as there can be multiple if you saved the data more than just once, which is pretty usual.
If you have, is this also happening outside of Liferay, say if you just have Orbeon Forms running on Tomcat and pass the "new" document id on the URL?
Alex
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