What is Campaign Priority?
Campaign priority features comes into play when multiple campaigns are competing to modify Discounts, Inventory or other settings on one product.
Example
Let’s say product X has discount set up via two campaigns: Campaign A and Campaign B
Campaign A and Campaign B both compete for discount .
Campaign A has Priority 1 and Campaign B has Priority 2.In this case, Campaign A will take the priority (lower the non-zero number higher the priority).Once campaign A is over Campaign B will take over.
How to Change Campaign Priority?
All the campaigns have 0 priority.
In case of two or more competing campaigns, the latest one has higher priority.
You can modify the priority from single campaign settings page: