For advanced users only.
Very rare to over-ride ACH Universal's default creation of trace numbers.
Improper use of this feature can render your ACH file Nacha non-compliant.
Please note that all versions (by default) of ACH Universal create trace numbers in accordance with all Nacha requirements.
To turn on Trace number importing:
From the Settings tab > Import, System > On the popup window - Custom tab > enter
Click Update and close the window.
Note: A service pack may be required to access this feature.
To import trace numbers, map the field 'Trace Number (Custom Code 846)'