Which field, referenced from the cost plan, determines if a cost plan is Capex or Opex?

The 'Cost type' field on the Cost Plan [costplan] record is the designated attribute used to classify planned expenses as either Capital Expenditure (Capex) or Operational Expenditure (Opex). This classification is crucial for financial planning, budgeting, and reporting on projects and demands. When a cost plan is created, the user explicitly selects 'Capex' or 'Opex' from this field to determine how the associated costs will be treated from an accounting perspective, directly influencing financial summaries and portfolio-level reporting.

A. Resource plan (resourceplan): A resource plan details labor requirements and associated costs, but the Capex/Opex classification is set on the cost plan itself, not the resource plan record.
B. Currency type (currency.type): This field defines the monetary unit for the cost (e.g., USD, EUR) and has no bearing on its financial classification as Capex or Opex.
C. Resource category (resourcecategory): This field is used to group resources by function or skill (e.g., Developer, Analyst) and is not related to the accounting treatment of costs.

1. ServiceNow Product Documentation - Create a cost plan in Project Workspace: In the table describing the fields on the Cost Plan form, the "Cost type" field is defined. The documentation states, "Select the cost type for the cost plan, either Capex or Opex." This directly confirms that the 'Cost type' field serves this specific purpose. (ServiceNow Product Documentation for Strategic Portfolio Management, "Project Financials in Project Workspace", Section: "Create a cost plan in Project Workspace").

2. ServiceNow Product Documentation - Cost Plan fields: The official documentation for the Cost Plan [costplan] table lists the "Cost type" (field name: costtype) with choices 'Capex' and 'Opex'. This confirms it is the standard field for this classification. (ServiceNow Product Documentation, "Tables and Columns", costplan table schema details).