In the 24R2 documentation:

The Update Processed Transactions section in the ‘About MCA’ page reads:

“All inventory parts, no matter of inventory valuation method, will have their labor and operation transactions costs adjusted from this command.”

The Update Processed Transactions activity in 5.5.9.1 Manufacturing Cost Allocation reads:

“The transactions of only inventory parts that are having Weighted Average setting in the inventory valuation method of the Inventory Part page will be updated from this update processed transactions command.”

EDIT: I figured out what the documentation was stating.