Which of the following is NOT a required condition for using a snapshot field?

A snapshot field in Quickbase is designed to capture and preserve data from a specific point in time based on a lookup relationship. For a snapshot field to function correctly, it needs to meet certain conditions.

The correct answer highlights that the source field does not need to be exclusively numeric for a snapshot field to operate. This means that a snapshot field can work with various field types beyond just numeric, such as text or date fields. Therefore, this condition is not strictly required, allowing for greater flexibility in the types of fields that can be utilized in conjunction with a snapshot.

The other conditions that are required help define the parameters for creating an effective snapshot. For instance, stating that the lookup field is based on a formula or that the lookup field itself is a numeric type ensures that the data being captured will be in a format conducive to analysis and reporting. Additionally, the requirement that the source must match the field type of the snapshot ensures consistency and accuracy in the data being stored. This overall alignment is key to effective data management within Quickbase applications.