Re-determining Foreign Trade data in Billing documents In MASS

Hi People,

    Due to some mistake in material master data i.e. Export commodity code is not maintained for few materials, in order related billing, almost 10000+ invoices have been created thru IDOC. but the issue is that all the invoices are in error as the foreign trade data is not maintained at item level. Now we have corrected the master data.

   My question is :  Do we have any procedure to re-determine the foreign trade data in MASS for all the billing documents in one shot. I knew we can do this one by one thru VF02 / with LSMW  . But Can you suggest if we have any other way to do in mass.

Thanks for your help,

Murali