What happens if the Project segment is added to a Valuation Structure that doesn't have the Inventory Organization segment?

The costing of the transactions happens at the valuation unit level and receipts/issues are processed based on the FIFO logic maintained in the costing application. Now, if the valuation unit doesn't have inventory organization, then the receipts and issues are treated like this.

Let's say you have a project PJ1 effective in the INV1 and INV2 inventory organizations. The tables lists the receipts and issues in the inventories.

Date	Receipt/Issue	Inventory Organization	Project	Quantity
01 Jan	Receipt	INV1	PJ1	1000
02 Jan	Receipt	INV2	PJ1	900
03 Jan	Issue	INV2	PJ1	500

If the valuation unit is at Cost Organization - Project level and both INV1 and INV2 are part of the CORG1 cost organization, then the depletion layers will be like this.

1st Jan    CORG1-PJ1    Receipt 1    +1000
2nd Jan    CORG1-PJ1    Receipt 2    +900
3rd Jan    CORG1-PJ1    Issue 1      -500 from Receipt 1