Set fields to "Not Empty" when criteria matched.
The feature is still under development and will likely be supported through conditional formatting. If you wish to get notifications once the feature is released, you can send out a request to firstname.lastname@example.org.
Before the feature released, you may combine conditional formulas and validation to get the similar workflow. For example, in the sheet below, we would like to set the "Manufacturer" field as "Not Empty" when the "Product Family" field is "Chocolate":
You may follow the steps below:
Step 1. Create a "Check Criteria" field with conditional formulas to check if the target field is empty when the rule is matched.
With our example, the target field is the "Manufacturer" field while the rule is "when the "Product Family" field is "Chocolate." The formulas would be:
When the "Product Family" field is "Chocolate," check if the "Manufacturer" field is blank. If it's blank, returns "No". Otherwise, returns "Yes".
When the "Product Family" field is not "Chocolate", returns "Yes" directly.
Step 2. Apply conditional formatting to remind the user fill in the required field
This step is optional.
Step 4. Apply validation on the "Check Criteria" field so that only "Yes" can be saved.
You may also apply an error message if needed:
With the above settings, when users select the "Chocolate" option in the "Product Family" field and leave the "Manufacturer" field blank, the system will pop up an error message upon saving: