OBR3- Productive company code

Hi Gurus

we have a situation that last year - April we set all our company codes as "Productive" in our Production client.

But when I looked now all the company codes are NOT checked as Productive in OBR3 or OBY6.

And I am trying to find as how they got unchecked.

Unfortunately we dont have the log of this tabel too. All the logs are disabled for std SAP tables.

And this all to do in the table T001. Can some body please advise if any of the

asset data load programs(I did some asset data loads) or year end closing programs would affect the "Productive " status of a comp code.

Many thanks in advance

Sharath