The KPI Type field is a mandatory field when creating a Retail Store KPI record in Salesforce Consumer Goods Cloud. This field is a picklist that defines the specific metric being measured, such as 'Share of Shelf', 'Out of Stock', or 'Count of Facings'. Without defining the KPI Type, the record would lack its fundamental purpose, as the system would not know what performance indicator to track or how to evaluate it during a store visit.

A. Effective to: This field specifies the end date for the KPI's validity. It is not a required field, as a KPI can be set up to be ongoing without a defined end date.

B. Retail Store Group: A Retail Store KPI must be associated with either a Retail Store Group or an individual Retail Store, but not necessarily the group. Therefore, this specific field is not universally required.

D. Promotions: While KPIs can be linked to promotions to measure their effectiveness, they are also used for standard, non-promotional compliance checks. This makes the link to a promotion optional, not required.

1. Salesforce Help, Consumer Goods Cloud Implementation Guide, "Set Up Retail Store KPIs": This document outlines the process for creating Retail Store KPIs. It implicitly requires a type to define what is being measured. The core function of a KPI record is to define a metric, which is handled by the KPI Type field.

2. Salesforce Object Reference for Consumer Goods Cloud, RetailStoreKpi Object: The official object documentation lists KpiType as a required picklist field. It states, "The type of KPI. For example, Share of Shelf, Count of Facings, or Out of Stock." This confirms its mandatory nature for record creation.

3. Salesforce Help, Consumer Goods Cloud Data Model, "Retail Execution Objects": The data model diagram and descriptions show that the RetailStoreKpi object's definition is centered around the type of KPI it represents, distinguishing it from other optional associations like RetailStoreGroupId or time-bounding fields like EffectiveToDate.