@erictgrubaugh I was able to parse the number I was looking for. It parses the message of a case we receive from AnswerConnect to see if a case already exists so I can merge to that case. My question was, how can I specify a substring that contains the string literal/object

Case Number

immediately followed by the regex specifying a six digit number? Can you include a string literal in a regex expression?

Yes you can include a string literal in a regex;

/Case Number \d{6}/