What is the difference between movement type 101 and 102?

Answer 1

In SAP MM, movement types control how goods are moved in inventory. 101 and 102 are closely related but opposite in purpose.

Movement Type 101

Used for Goods Receipt (GR) against a Purchase Order

Indicates stock is being added to inventory

Increases stock quantity

Commonly used when goods are physically received from a vendor

Can be posted into:

Unrestricted stock

Quality inspection stock

Blocked stock (depending on settings)

👉 Example: You receive 100 units of material from a supplier → you post 101 → stock increases

Movement Type 102

Used to reverse a 101 Goods Receipt

It is a cancellation of goods receipt

Decreases stock quantity

Used when a GR was posted incorrectly or goods are returned

👉 Example: You mistakenly posted 100 units as received → you post 102 → stock is reduced back

Key Difference

Feature 101 Movement 102 Movement

Purpose Goods Receipt Reversal of Goods Receipt

Stock Impact Increases stock Decreases stock

Usage Receiving materials Cancel incorrect receipt

Nature Positive posting Negative posting

Simple Summary:

101 = Receive stock

102 = Cancel received stock

If you want, I can also

explain movement types like 201/202, 301/302, or 261/262 for interview preparation.