What to do about "does not always return formatted value" error?

Question

When attempting to add text containing Expression Language to a layout, I encounter an error that reads "Expression doesn't always return formatted value..."

How do I resolve this issue?

Answer 1

You can wrap the Expression Language (EL) snippet with the number() EL function to explicitly define the format in which the value should be displayed.

Here is a link to the documentation that provides more information on formatting functions.