IsError not workin

Hi Guys

I had this in a query
Comment: Replace([Comments],"- Old result was","/")
which is giving me #Error when [Comments] is NUll
i changed to
Comment: iif(IsError(Replace([Comments],"- Old result was","/")),NULL,Replace([Comments],"- Old result was","/")))
BUt still gives me #Error where [Comments] is null
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titorober23Author Commented:
I just fixed, i changed to
Comment: Replace(nz([Comments]),"- Old result was","/")

Now instead of #Error gives me Null/Blank

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Visual Basic Classic

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