User`s guide

Another formula which performs much the same functions is the following:
"BOB" in UpperCase({customer.CONTACT FIRST NAME})
7.4.2.2 Unwanted spaces appear in selection formula
Spaces are characters, and when you include spaces in the search key of a record selection formula,
the formula looks for records with the exact match in the selected field, spaces and all. For example,
the following formula:
"Mr . " in {customer.TITLE}
will not find any matches with the form of address "Mr." because there is an extra space in the search
key between the letter "r" and the period. Likewise, "Ph. D" will not match "Ph.D".
Check your selection formula closely, and make sure that the spaces in the selection formula match
the spaces in the fields you are trying to match.
7.4.2.3 Using If statements in selection formulas
When creating record selection formulas that include If statements, always include the Else keyword;
otherwise, no records or unexpected records may be returned. For example, a record selection such
as If {parameter field} = "less than 100" then {field} < 100 evaluates as False
and returns no records. To correct this problem, complete the formula with Else True.
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Record Selection