AFI
Is empty
Is empty passes when the chosen field was left blank on the submission. It takes no comparison value, so the value box disappears from the rule row when you select it.
When to use it
Use it to catch incomplete submissions and route them somewhere useful: sending a follow-up email when a phone number is missing, flagging a lead with no company name for manual enrichment, or tagging contacts who skipped an optional preference question.
How to configure it
- Open AFI → Integrations and edit your integration.
- Switch on Conditional Logic.
- Pick the field and choose Is empty. No value is needed, and the value box is hidden.
How it behaves
A field counts as empty when it arrives as an empty string, as nothing at all, or as an empty set of choices from a multi-select or checkbox group.
A field containing only spaces is not empty. Whitespace is a real value here, unlike in the text operators such as Equal to, which trim before comparing.
Zero is not empty either. A numeric field holding 0 has a value and fails Is empty.
Quick reference
| Field value | Result |
|---|---|
| Nothing submitted | Empty |
"" |
Empty |
| No checkboxes ticked | Empty |
" " (a space) |
Not empty |
0 |
Not empty |
false as text |
Not empty |
Example
A quote request form makes the phone number optional. When it is missing, you want the lead to go into an email-only nurture sequence instead of the call queue.
Set the rule to {{phone}} Is empty and point the integration at the nurture list. A second integration with Is not empty on the same field feeds the call queue.
Notes
A rule row with no field selected is ignored entirely, counting toward neither a match nor the total. Is empty is about the submitted value, not about an unfinished rule.