You want to calculate the deadline for a review, which is determined by applying a...

Duplicate the existing Appian object and rename it to include the date of the release that will contain the new object.

This follows the best practice of not reusing objects that are more than one (1) year old.

Reuse the existing Appian object to perform the calculation after validating it works properly for your use case.

Reusing the object helps to enforce consistency with application of the formula across the application.

Duplicate the existing Appian object and reuse the same name.

This follows the best practice of maintaining traceability of object creation to developers while avoiding duplication of code.