This API is subject to change. Bug fixes and new features will be released based on developer feedback throughout the preview period.
Calculates the sum of the specified expression across all items in the group.
The sum() method refines the aggregation pipeline to calculate the sum of the specified expression across all items in the group.
Expression to calculate the group's total sum. Expression must resolve to a number. Learn more about using expressions in aggregation pipelines.
Field to store the result in.
Learn more about field keys.
This method doesn't return any custom errors, but may return standard errors. Learn more about standard Wix errors.