SD - Reversing transfer Order after reverse of PGI

Dear All,

the standard sales scenario where WM is Managed is as below:

1. sales order VA01

2. OBD VL01N - save without picking

3. Create Transfer order - LT03

4 VL02N - PGI

now to reverse thiss

1. VL09 reverse PGI

when we cancel the transfer order (LT15) we get the message "Transfer order already confirmed or cancelled or cancelled at sent" *

2. VL02n - we can cancel the OBD, but where to check the status of TO

Thanks & Regards,

Gautam