GATP Product allocation status report and backorder processing

Question

Dear Experts,
We are using product allocation as the first and only step in GATP check.
The scenario is like this:
Sales order total quantity = 200
Planned allocation quantity=150
Thus
Confirmed sales order quantity=150
Questions:
1.Now how can see the confirmed/unconfirmed situation for all sales orders.
Is there any standard report.
I understand that this report need to show the planned allocation quantity,total sales order quantity and the confirmed sales order quantity may be bucket wise.Also this report can show the details of all sales orders in the bucket.
The GATP planning book only shows confirmed sales orders in the "sales order" keyfigure until you have introduced another order series key figure for sales order(not related to GATP) which has sales order/scheduling agreement category group assigned to it.
2.Can I do backorder processing of sales orders assuming that after the above report is run,I have changed the planned allocation quantity from 150 to 200 and I need that the sales order can be confirmed now by this program rather than by going into ECC and triggering the GATP check again.
Note that the stock availability situation may remain the same.
Request you to kindly suggest if this is possible in backorder processing.If yes,then what are the settings and the transactions to execute this.
Thanks,
Chandan

Answer 1

Thanks so much Michael for a prompt reply.
Couple of points.
1./sapapo/ac42-This report is helpful but this has 2 issues.
                                             It has to be run at individual CVC level.Thus it is not a comprehensive report.
                                             It does not provide sales order original quantity.It just provides the planned allocation quantity,confirmed sales order quantity and the remaining quantity.This is normally already available in interactive planning of GATP planning area.
What we need is a report which must say what is the original sales order quantity and how much has been confirmed and how much is the bucket planned allocation quantity.
2.Running ATP in product view or interactive backorder processing view may not help as they seem to be working with ATP group and not with check mode.Note that product allocation gets triggered when check mode comes into play.
Do you know if we can make it work with check mode.
3.The batch backorder processing is working when I am using the "update changes" option.I am still evaluating the results as I don't understand many settings here.It will be nice if you can elaborate on some of the settings used in this transaction please.
Thanks again.
Regards,
Chandan