after return invoice values will update in credit mangement where is the control
the control is update rule (example 000012/15/18) which we assign to credit control area which we assign to the relevant payer master in FD32.
However, you may observe return order values will not be updated in FD32 the control is in the definition of the item category(REN) the credit active field is unchecked.
If you uncheck this credit active field in REN all the sales values( open order, open delivery and open invoice) will not be updated.
Note : if you assign the update rule 000012 usually system updates open order,open delivery, open invoice and open items.
In reruns process since we un check the field credit active in REN system does not update any sales values, it only updates receivable(open items).
Please let me know if you need any further clarifications?
Thanks,
Srinu.