If none of your multi-select options contain commas or quotes, you can use a formula like this:
IF(
OR(
AND(
FIND("Option", {MultiSelect}),
LEN({MultiSelect}) = LEN("Option")
),
FIND("Option, ", {MultiSelect}),
FIND(", Option", {MultiSelect})
),
"Got it!"
)
This formula looks for one of three case:
- the desired option is the only option selected, and thus the length matches
- the desired option is one of multiple options selected (but not the last option), and thus will be followed by a comma and a space.
- the desired option is one of multiple options selected and is the last option selected, and thus will be preceded by a comma and a space.
This formula will not work if your option has a comma or a double-quote because Airtable will add extra quotes to the multi-select option when evaluating the formula.