I have configurable product if choose different color in products page price return 0,
In my configurable productpage,
How to solve the issue. Any help.
The most likely issue is that you are using an extension which is changing how configurable products work or your theme is doing it.
Most extensions regarding configurable products change the functionality to use prices directly from the child products (the products assigned to the configurable product).
I can recommend several things you could try that might help you debug this issue:
nullprice which could cause problems
in stockand that they have
quantity > 0