Hello, I’m trying to send an email notification for engineers when the business development department finishes the first stage, however this flow shows this error although everything above is working fine.. what is the problem?

Hello, I’m trying to send an email notification for engineers when the business development department finishes the first stage, however this flow shows this error although everything above is working fine.. what is the problem?
Check the values being used in your switch. The most common issue is that switches are case sensitive and it may not be matching the value because the input has different capitalization. Its a best practice to use a function to shift the input value to all lowercase and then use all lowercase in the case statements to avoid this problem.