The regular expression (RegEx) provides a wide range of possibilities and flexibility in setting up conditions for various features such as:
Conditional Field
Field Validation
Filters
Login conditions
Form submission conditions
RegEx can be quite confusing, but ChatGPT is great at generating them based on a description of the desired limitations!
E.g. "Give me a RegEx that limits my field to only lowercase characters and numbers, 4 to 7 characters long. Also allow a single dash."
For instance, you may use RegEx to validate if an ID number follows a specific format like this example.
Example: Zip Code Format Validation
Here's an example of how to validate Zip codes:
You would use the pattern ^\d{5}(-\d{4})?$ and the result would look like this:
Limitations
RegEx is not supported for the following field types:
Multi-select
Date
Duration
Checkbox
Number
Currency
Percent
Linked Records
Lookup
Rating