SubstitutesearchString - any text expression or text fieldreplaceString - any text expression or text fieldThis function is case-sensitive. Compare to the Replace function.Multiple substitutions are allowed when you enclose each pair of searchString and replaceString parameters within brackets [ ] and separate them with semicolons. FileMaker supports up to 999 nested substitute conditions. Each search and replace list item is also separated by semicolons. For example:Substitute(Description;“WYSIWYG.”;“What you see is what you get.”) replaces every occurrence of the acronym “WYSIWYG.” in the Description field with the phrase What you see is what you get.