Hi,
Then there are 2 possibilities in this case.
1. Either your transaction is not getting saved properly.
in this case check the order_save badi method check_before_save method for exception raise do_not_save. if this exception is raised then the transaction will not be saved.
2. If the above case is not happening, then keep a break point in crm_order_maintain function module and check is it triggering. If this is triggered check the data which is being passed in this function module. why and where the data is changed.
Kindly let me know if this helps you.
Br,
Navn