HasKey Operator

Checks whether a lookup key is present in a lookup map with the given name. Returns a bool.

What	Type
Syntax	HasKey(lookupName, key)
lookupName	string
key	string
Return type	bool

Example: If(HasKey("Status", $StatusId), Status($StatusId, $StatusText), "missing lookup")

Checks whether the "Status" lookup map has an entry for the content of the field StatusId. If it has, it returns this lookup, otherwise returns a string literal "missing lookup".

Please note that the lookup would cause an error if doesn't find the key in the lookup map, unless the noFailOnMiss attribute of the LookupMap definition is set.