Entries applied to an Outbound Transfer cannot be unapplied.

I am using navision 6.0 sp1
When i am trying to post return order ,it throws error like
“Entries applied to an Outbound Transfer cannot be unapplied.”
Since this error is very new in my experience .
Experts help me out… [*-)]

We got this because nav was tung to unapply transfer type ILE’s which isn’t allwoed as per std functionality, In the end the solution was

Clear the ‘Applies to ID’ field which has the ILE entry number relating to other entries that may well be transfer, we had the same issue on the Purchase Return Order LIne!