Three problems leap off the page
1. There is a limit on the number of fields that can be nested. The fields
here do not require nesting.
2. You are using smart quotes. You should use straight quotes.
3. You have probably simply typed the fields rather than used CTRL+F9 to
insert the field boundaries.

What you need to do is to set a series of conditional fields each following
the one before with no spacing between them. Type from the keyboard using
CTRL+F9 for each pair of field boundaries {}

Thus:

{ IF{Mergefield RESON} = "BKREM" "to purchase a Book of Remembrance.
"}{IF{Mergefield RESON} = "CEMC " "for the cemetery care program.
"}{IF({Mergefield RESON} = "COF " "to support the Celebration of Freedom.
"}{IF{Mergefield RESON} = "COT " "to support the Climate of Trust program.
" }{IF{Mergefield RESON} = "COTR " "to welcome the FSU delegates at the
annual Climate of Trust Reception. "}{IF{Mergefield RESON} = "FOOD " "to
purchase a food parcel(s) to the FSU. "}{IF{Mergefield RESON} = "INHON "
"in honor of NAME of HONOREE "}{IF{Mergefield RESON} = "INKND " "for the
in kind gift of NAME OF GIFT "}{IF{Mergefield RESON} = "INMEM " "in memory
of NAME OF PERSON(S) "}{IF{Mergefield RESON} = "KPPT " "to purchase a
Kippot. "}{IF{Mergefield RESON} = "MANNA " "for the Manna Program.
"}{IF{Mergefield RESON} = "MJSCH " "to support the Minsk Jewish School
through the Bay Area Council. "}{IF{Mergefield RESON} = "MOSTM " "to
purchase a MOST magazine. "}{IF{Mergefield RESON} = "VILN " "to aid the
elderly in the town of Vilnius. " "{IF{Mergefield RESON} = "YADLY " "to
support the Yad L'Yad (Hand to Hand) Program. "}{IF{Mergefield RESON} =
"YSF " "to support and aid Yana Slobodova in her return to the United
States. "}.


Incidentally 'aid' doesn't have an 'e' in this context.


--

Graham Mayor - Word MVP

My web site www.gmayor.com
Word MVP web site http://word.mvps.org



Tab wrote:
I am having difficulty with my if statements in mail merge. It's
quite long and complicated and I can figure out where I messed
up....If someone can please help!!!

This is what I wrote:
{if«RESON»= "BKREM" "to purchase a Book of Remembrance." "{if«RESON»=
"CEMC" "for the cemetery care program." "{if(«RESON»= "COF" "to
support the Celebration of Freedom." "{if«RESON»= "COT" "to support
the Climate of Trust program." "{if«RESON»= "COTR" "to welcome the
FSU delegates at the annual Climate of Trust Reception." "{if«RESON»=
"FOOD" "to purchase a food parcel(s) to the FSU." "{if«RESON»=
"INHON" "in honor of NAME of HONOREE" "{if«RESON»= "INKND" "for the
in kind gift of NAME OF GIFT" "{if«RESON»= "INMEM" "in memory of NAME
OF PERSON(S)" "{if«RESON»= "KPPT" "to purchase a Kippot."
"{if«RESON»= "MANNA" "for the Manna Program." "{if«RESON»= "MJSCH"
"to support the Minsk Jewish School through the Bay Area Council."
"{if«RESON»= "MOSTM" "to purchase a MOST magazine." "{if«RESON»=
"VILN" "to aide the elderly in the town of Vilnius." "{if«RESON»=
"YADLY" "to support the Yad L'Yad (Hand to Hand) Program."
"{if«RESON»= "YSF" "to support and aid Yana Slobodova in her return
to the United States."}"}"}"}"}"}"}"}"}"}"}"}"}"}"}"}.

I want it to determine if the reason corresponds to what it is equal
to it will display the correct text....and that's all. Right now, It
displays all of this info in the word document...and that is not what
I want.