Hi Ana,
Thanks for your feedback and I regret any inconvenience caused. Unfortunately I do not have any working program to share it with you otherwise I would have been happy to share it with you.
Kindly can you suggest if you have tried creating a custom FM (In case BAPI is not helping...!!) and how is your item level details getting fetched form QMEL, QMFE table. You can get these values form any of your existing notification, and please can you share the field names you are using in your FM.
I will again suggest you to work more closely with your technical team on this regards. You may also need to take help of exit EXIT_SAPMIWO0_010.
Else, you can wait for some further expert advice here.
Thanks,
Arijit