Deleting a production order

Hello All,

I would like to enable a batch management feature for a finished product.

I would like to delete existing production orders and planned orders.

I deleted the component quantities in the production order and set the TECO flag.

I also enabled the deletion flag.

I removed all planned orders from MD04 and there are no forecast values.

MMBE also shows zero quantity.

However when I try to change the material using mm02 it still gives the following message:

Production orders already exist for the material

What else do I need to do?

Thanks in advance

George