average costing&FIFO method

Purchase 1
Sales 1
Sales 2
Sales 3
Purchase 2
Sales 4
Sales 5
Sales 6

Purchase 1=purchase 2 , Same Qty ,different vendor
Using

1. Average cost method

2. FIFO- sales using purchase 1 cost

So experts please let me know about your solutions on this.

How can I use this two method do transaction.

Can show me she example?

I would advice you to go through Inventory costing pdf for this. You can download it from partnersource and if you are not partner i.e. you are an end user ask your partner for the material.

I suggest you set up an item and actually try it. Then you can monitor at each stage what is happening. It will of course depend upon your automatic cost setting and ACIE running, but I do not actually see a question - you ask for a solution, but my answer is yes it does this.