12. How do you handle null or empty values in a flow?

Think of null values like potholes in a road—if you don’t watch out, your flow might crash.

How to Handle Them:

• Use empty() to check if a field is blank.
• Use coalesce() to give a backup value if something is missing.
• Add a condition before using any data that might be null.

Real-Life Example:

In a birthday email flow, I check if the DateOfBirth field is empty. If it is, I skip the age calculation to avoid errors.