Just this week I built this lovely formula. It was a royal pain. It might be your lucky day.
Website
https://www.urlencoder.io/learn/
The website says we only have to deal with the green ones
var text RawOne = URLEncode([My Pasted Field]);
var text ReplaceLineFeed = SearchAndReplace($RawOne, "%0A", "<br>");
var text ReplaceCarriageReturn = SearchAndReplace($ReplaceLineFeed, "%0D", "<br>");
var text ReplaceSpace = SearchAndReplace($ReplaceCarriageReturn, "%20", " ");
var text ReplaceExclamation = SearchAndReplace($ReplaceSpace, "%21", "!");
var text ReplaceQuote = SearchAndReplace($ReplaceExclamation, "%22", "\"");
var text ReplaceHash = SearchAndReplace($ReplaceQuote, "%23", "#");
var text ReplaceDollar = SearchAndReplace($ReplaceHash, "%24", "$");
var text ReplacePercent = SearchAndReplace($ReplaceDollar,"%25", "%");
var text ReplaceAmphersand = SearchAndReplace($ReplacePercent,"%26","&");
var text ReplaceSingleQuote = SearchAndReplace($ReplaceAmphersand,"%27", "'");
var text ReplaceLeftRoundBracket = SearchAndReplace($ReplaceSingleQuote,"%28", "(");
var text ReplaceRightRoundBracket = SearchAndReplace($ReplaceLeftRoundBracket,"%29", ")");
var text ReplaceStar = SearchAndReplace($ReplaceRightRoundBracket,"%2A","*");
var text ReplacePlus = SearchAndReplace($ReplaceStar,"%2B", "+");
var text ReplaceComma = SearchAndReplace($ReplacePlus, "%2C", ",");
var text ReplaceSlash = SearchAndReplace($ReplaceComma,"%2F", "/");
var text ReplaceColon = SearchAndReplace($ReplaceSlash,"%3A",":");
var text ReplaceSemiColon = SearchAndReplace($ReplaceColon,"%3B", ";");
var text ReplaceLT = SearchAndReplace($ReplaceSemiColon,"%3C","<");
var text ReplaceEquals = SearchAndReplace($ReplaceLT,"%3D", "=");
var text ReplaceGT = SearchAndReplace($ReplaceEquals,"%3E",">");
var text ReplaceQuestion = SearchAndReplace($ReplaceGT,"%3F","?");
var text ReplaceAT = SearchAndReplace($ReplaceQuestion,"%40","@");
var text ReplaceLeftSquareBracket = SearchAndReplace($ReplaceAT,"%5B", "[");
var text ReplaceBackSlash = SearchAndReplace($ReplaceLeftSquareBracket,"%5C","\\");
var text ReplaceRightSquareBracket = SearchAndReplace($ReplaceBackSlash,"%5D", "]");
var text ReplaceCaret = SearchAndReplace($ReplaceRightSquareBracket,"%5E", "^");
var text ReplaceBackTick = SearchAndReplace($ReplaceCaret,"%60", "`");
$ReplaceBackTick
Werps, I guess the button that says reply in the email doesn't update the post.
We needed to see the special characters in a field so we can diagnose what is causing the problem. So I took what Mark posted and modified it so if it finds a special character it gets added to the final text of the field.
UPDATED!
var text RawOne= URLEncode( [Scope Change Description]);
var text HorizontalTab= ToText(If(Contains($RawOne, "%09"),"htab." ,"."));
var text LineFeed= ToText(If(Contains($RawOne, "%0A"),"lf." ,"."));
var text CarriageReturn= ToText(If(Contains($RawOne, "%0D"),"cr." ,"."));
var text Space= ToText(If(Contains($RawOne, "%20"),"sp." ,"."));
var text Exclamation= ToText(If(Contains($RawOne, "%21"),"exclm." ,"."));
var text Quote= ToText(If(Contains($RawOne, "%22"),"quote." ,"."));
var text Hash= ToText(If(Contains($RawOne, "%23"),"hash." ,"."));
var text Dollar= ToText(If(Contains($RawOne, "%24"),"dollr." ,"."));
var text Percent= ToText(If(Contains($RawOne, "%25"),"pcent." ,"."));
var text Amphersand= ToText(If(Contains($RawOne, "%26"),"amp." ,"."));
var text SingleQuote= ToText(If(Contains($RawOne, "%27"),"snglqt." ,"."));
var text LeftRoundBracket= ToText(If(Contains($RawOne, "%28"),"lbrkt." ,"."));
var text RightRoundBracket= ToText(If(Contains($RawOne, "%29"),"rbrkt." ,"."));
var text Star= ToText(If(Contains($RawOne, "%2A"),"star." ,"."));
var text Plus= ToText(If(Contains($RawOne, "%2B"),"plus." ,"."));
var text Comma= ToText(If(Contains($RawOne, "%2C"),"comma." ,"."));
var text Slash= ToText(If(Contains($RawOne, "%2F"),"slash." ,"."));
var text Colon= ToText(If(Contains($RawOne, "%3A"),"colon." ,"."));
var text SemiColon= ToText(If(Contains($RawOne, "%3B"),"secolon." ,"."));
var text LessThan= ToText(If(Contains($RawOne, "%3C"),"lessthan." ,"."));
var text Equals= ToText(If(Contains($RawOne, "%3D"),"equals." ,"."));
var text GreaterThan= ToText(If(Contains($RawOne, "%3E"),"grtrthan." ,"."));
var text Question= ToText(If(Contains($RawOne, "%3F"),"questn." ,"."));
var text At= ToText(If(Contains($RawOne, "%40"),"At." ,"."));
var text LeftSquareBracket= ToText(If(Contains($RawOne, "%5B"),"lsqbrkt." ,"."));
var text BackSlash= ToText(If(Contains($RawOne, "%5C"),"bkslsh." ,"."));
var text RightSquareBracket= ToText(If(Contains($RawOne, "%5D"),"rsqbrkt." ,"."));
var text Caret= ToText(If(Contains($RawOne, "%5E"),"caret." ,"."));
var text BackTick= ToText(If(Contains($RawOne, "%60"),"bktic." ,"."));
var text LSingleQuote= ToText(If(Contains($RawOne, "%91"),"lsnglQuote." ,"."));
var text RSingleQuote= ToText(If(Contains($RawOne, "%92"),"rsnglQuote." ,"."));
var text LQuote= ToText(If(Contains($RawOne, "%93"),"lQuote." ,"."));
var text RQuote= ToText(If(Contains($RawOne, "%94"),"rQuote." ,"."));
var text NDash= ToText(If(Contains($RawOne, "%96"),"ndash." ,"."));
var text MDash= ToText(If(Contains($RawOne, "%97"),"mdash." ,"."));
var text MiddleDot= ToText(If(Contains($RawOne, "%B7"),"dot." ,"."));
var text FractionOnHalf= ToText(If(Contains($RawOne, "%BD"),"half." ,"."));
$HorizontalTab & $LineFeed & $CarriageReturn & $Space & $Exclamation & $Quote & $Hash & $Dollar & $Percent & $Amphersand & $SingleQuote & $LeftRoundBracket & $RightRoundBracket & $Star & $Plus & $Comma & $Slash & $Colon & $SemiColon & $LessThan & $Equals & $GreaterThan & $Question & $At & $LeftSquareBracket & $BackSlash & $RightSquareBracket & $Caret & $BackTick & $LSingleQuote & $RSingleQuote & $LQuote & $RQuote & $NDash & $MDash & $MiddleDot & $FractionOnHalf
