From the June 28, 2017 edition of The ARRL Contesters Update,
edited by Brian Moran, N9ADG

Logging ALL of the Contact Information:

It's a good practice to log all pertinent information with your
contacts, and ensure that information is also included when
uploading to Logbook Of The World (LOTW). Many HF operators
collect counties, while VHF/UHF operators are interested in
grid squares.

When uploading logged contacts to LOTW, please make sure that
this information is included with each contact, or make sure
that your LOTW information includes your grid and county, and
that it's accurate for each contact.

If you've already uploaded contacts to LOTW with incorrect
information, you can correct it, and upload those contacts
again.

For more information on how to fix logs uploaded to LOTW, go to:

http://www.arrl.org/files/file/LoTWInstructions/Fixing Your Log.pdf

You will need the Adobe Acrobat Reader to view/print the file.
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