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Old 05-29-2022, 12:15 AM   #706
mariejulien13
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mariejulien13 began at the beginning.
 
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Join Date: Apr 2022
Device: Kobo Clara, Kobo Libra 2
Thank you for taking the time to answer!

The date format mentioned in the custom column tooltip (Target #Column to Update) is 'datetime' datatype. I searched on google what 'datetime' refers too, but didn't find a definite answer so I assumed I could use the format mentioned in the tooptip below for standard column (Target Column to Update), which is YYYYMMDD of YYYY-MM-DD. When those two formats gave me the 'Unknown string format' error, I tried the other three formats I listed above, just in case.

Now, I realize that this must be something quite basic that I don't get, and that it's probably written on the print screen you attached, I just don't know the date format I should use.
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