Hi Karunanithi,
Thanks for Quick reply!!
The Account assignment category used here is F (orders)
I have checked OKB9 setting for the relevant CCO and GL account.
I can find a internal order assigned for the plant, for which am making the PO.
Is this error message is issued as there is already a internal order assigned to the plant?
And am getting the error only when I provide a order number in the PO
Br,
Partha.