Hi
Same error message is also came when I try to Un-register to Registered Item in AX 2012.
For the solution I am using the backend .I am login to SQL Database and then write a query
I have taken INVENTTRANS table and find the particular item,because all the intermediate transactions exist in this table.
please follow the down steps of query:-
select * from INVENTTRANS
select * from INVENTTRANS where Itemid= 'SAGL001-02'
select * from INVENTTRANS where ITEMID='SAGL001-02' and QTY =600
--// Now choose for Date of BOM Journal same exist in DATESTATUS.
select * from INVENTTRANS where ITEMID='SAGL001-02' and QTY=600 and DATESTATUS='01/17/2013'
--// Now check here StatusReceipt = 3 which is Registered State of Item.
--// Please change the status from 3 to 0 for unregistered the particular Item.
update INVENTTRANS set STATUSRECEIPT='0' where ITEMID='SAGL001-02' and QTY=600 and DATESTATUS='01/17/2013'
By this way we can change the status from Registered to Un-registered and easily remove that Item in AX 2012.
In case if you face any problem ,please write to me on my e-mail id => lalitsoni1984@gmail.com