Independent requirements and dependent requirements are the two main types of requirements you encounter when configuring SAP planning. This is what they are:

Planned Independent Requirements (PIR)

Planned Independent Requirements are planned production or sales quantities that are based on some sort of forecast procedure (e.g. Material Forecast or S&OP procedure). These numbers are used in MRP to calculate procurement and/or production quantities for a material.

(Planned) dependent requirements

Dependent requirements is demand that is dependent on another material. E.g. components of a bill of material are often planned on the basis of the demand for the material of which it is a part.

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