When this options is enabled, Winlog32 will open a port and listen for logging information broadcast by N1MM in real time.
QSO data is automatically added to the current loaded Winlog32 log.
The QSO data transfer may be limited to that supplied by the remote programs or that required by Winlog32.

menu/Option/Logging Interface/UDP N1MM, ADIF, JTAlert > Options.

The correct parameters will have to be set in Winlog32 for the UDP interface, principally the port number; default port for N1MM is 12060, and should be set in Winlog32, these port numbers can be changed but they MUST match in both programs.
The 'address' 127.0.0.1 is used for the 'local machine'.

Windows Firewall may block the selected port(s) and issue a warning when this option is selected!
There should be options in the software that generated the warning to allow Winlog32 access to the port, if you don't allow this, you will not be able to use the UDP interface.

N1MM Configure: Menu/Config -Configure Ports, Mode......
TAB: Broadcast Data.
Enable option: Contacts.

Winlog32: Menu/Options/logging Interface/UDP N1MM, ADIF, JTAlert > Options.
Option 'N1MM' enabled.
The UDP port for N1MM is 12060 and should match in both Winlog32 and N1MM

N.B.
Only one UDP interface can be used with this option.

N.B.
When using third party logging interfaces, the Real-Time Upload to Online Logs' can still be used however it is better to disable the Auto-Upload 'PROMPT' option. menu/options/Settings TAB Realtime Upload
Be aware that some external kogging software may have similar options to upload QSO, it is obviously essential that only one upload takes place for each QSO by enabling/disabling the appropriate options in either software.

It may be necessary to verify that a QSO has been logged correctly by Winlog32 when using any of these methods as there is no prompt or notification from Winlog32 when adding a QSO to the Log.

These are general settings and similar options apply to all logging interfaces.

'Add Band Only'
Transfer Frequency BAND only, the default is to transfer the full frequency from WSJT-X.

'Add Info to User' and 'Add Info to Remarks'.
These two options select which field the WSJT-X / JTAlert Name and Comments are added in Winlog32.

Not all log fields produced by external logging will be imported into Winlog32.

The 'Auto-add' functions in Winlog32 are disabled when using the above logging methods.