Issue with Alternate unit of measure

Question

Here in my production client which creating a material in April they have created with Base unit of measure = G and alternate unit of measure = EA
! EA = 60G....But actually they should have maintain 1 EA = 50g....Lot of docs got posted from April onwards...
Movement types posted were 641,561, 562,101,102,601,653
Now is there any possiblity to rectify it????

Answer 1

Basically you need to correct your material master and then adjust the quantity with a physical inventory as Manoj already suggested.
However, you should at least check each movement related to sales  like the 641, 601 and 653 movements if it was done in the alternative unit or in the base unit . MB51 can give you this info in the detailed report.
you then have to analyze if you billed too much or too less to your customer.
This should then be rectified before you adjust your inventory, because you may get even more problems with posting if you get a  customer complaint or a return which need to be posted with the old incorrect conversion ratio. Otherwise you may have to adjust your inventory a second time after such event ocurs.