idoc DEBMAS06 in ECC 6.0

Hi,

I have the follow problem: i have an idoc DEBMAS06 in status 51 with mesagge BP00 022.

The value of field GBDAT ( field of error) 20090701.

Before the upgrade from 4.6 to 6.0 the idocs were in status 53 (OK status).

Where is the problem?

Thanks.