Which of the following options is NOT valid for Parent/Child Numbering?

Custom Numbering is not a valid option for Parent/Child Numbering because Parent/Child Numbering typically involves predefined numbering formats that adhere to specific rules for continuity and hierarchy. In contrast, options that include "Continuous" or "Suffix," especially in conjunction with parameters like "on Retry," reflect established methods for automatically generating numbers based on the context of previous entries.

Continuous, Suffix on Retry, Suffix, Continuous on Retry, and Continuous Always all involve systematic approaches to numbering that help maintain order and organization within the Parent/Child structure. In these methods, numbers are assigned in a way that keeps track of parent and child relationships effectively, ensuring clarity and traceability, which is essential in data management and processing systems.