Updates a loyalty reward.
Call this method to update details of a reward, such as the name, whether a reward is active, or the amount of points it costs to redeem. Also call this method to add new tiers that are eligible to redeem a reward.
You may not change the type of a reward. That's set upon creation and can't be updated.
Reward ID.
Reward info to update.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.