With the implementation of the third Same Day ACH window on March 19, 2021, there is now a new numbering scheme for settlement advices. As you will note, FRB/FedACH remain in sync with TCH/EPN as it pertains to advice numbering.
|Available/Settlement Time||FRB/FedACH Advice Number||TCH/EPN Advice Number|
|11:30 a.m. ET/1:00 p.m. ET||1||1|
|4:30 p.m. ET/5:00 p.m. ET||2||2|
|5:30 p.m. ET/6:00 p.m. ET||3||3|
|3:30 a.m. ET/8:30 a.m. ET||5||5|