After adding a date field in CMDB Hardware class definition, I imported my data including the new date data and all seems fine. However I noticed the following repeated hundreds of times in the System Log -
No FormatTimeString() translation found for '16/02/2015 00:00:00' string!
The date was imported from Excel and the cells were formatted as 'Date' eg 09/03/2015.
What is it that OTRS doesnt like? Could it be that there was no time data in my import?

Thanks for any help you can offer.