I have created a roll-up summary count field that successfully counts the Opportunity Product. But whenever I create a validation rule for the Opportunity I run into trouble. Once the validation rule has been created with the logic "Opportunity_Product_Count > 0" if I try to save a quote with that product, it throws a calculation error that means it can't be done until a picklist value is selected, but it is such a generic "coding" error users would get confused and have no idea what to change.
Is there another way to accomplish this, or is this just not possible?
3 risposte
AND(
ISCHANGED(Stage),
Opportunity_Product_Count __c <= 0
)
Check this.