Hi Jonathan.gonzalez 

Cost adjustment (FUNSTKADJ) is the only function that allows to update existing margins and issue value. But this function is officially only working for Average, Lot average, FIFO, or LIFO methods.

Having no experience with last cost, I cannot tell you for sure if this will work or not. But the on-line help is very clear: last cost is not among the supported stock valuation method. So don't set your hope to high.

Please be sure to conduct such tests in a TEST environment prior to changing LIVE. In your context, the result are unpredictable.

Side question: would it be possible to convince your customer to come back to a more classical valuation method: Standard, Revised standard, Average, Lot average or FIFO.

Thanks Julien Patureau ,

We are trying change que valuation method in our client.

I already test "cost adjustment" in TEST without success in last cost.

The main alternative es Standard cost recalculated with the last cost. But i think that it is not possible to launch "cost adjustment" in standard cost like with last cost.

Jonathan.gonzalez said:

The main alternative es Standard cost recalculated with the last cost. But i think that it is not possible to launch "cost adjustment" in standard cost like with last cost.

Correct

Jonathan.gonzalez 

You raise a really valid question: how to update issue value after a receipt cost adjustement or how to fix an error on last cost?

I suggest to raise the question to your Sage support team as an enhancement request.