Mailmerge and formfields as in a protected document are incompatible.
You could use VBA to populate replicas of a "main" document with the data
from the database to avoid that conflict.

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Hope this helps,
Doug Robbins - Word MVP
>I am trying to take a created form that has entries plus checkboxes and
> create a mailmerge with it. I am not able to use the checkboxes unless
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> Any
> suggestions on how I can get them both to work??