Field overflow for component 83 / item 0010

Dear all,

I'm encountering a problem while retransferring data from APO (5.0) to ECC (6.0).

I receive the error message mentioned in the subject when I try to modify a previously CIF-fed (ECC -> APO) production order within the product view.

The RFC-connection itself is up an running. I can see that by modifying the CIF-fed order and check it in ECC directly afterwards (I receive the warning that my RFC-USER is currently processing that order).

Any ideas greatly appreciated... Bobby