If I went on a business trip one month before my new business was registered, can that be claimed under my meals entertainment expenses?

I was in the process of starting and registering my new business and was invited on a trip that pertained to my business to network and talk about my services that were coming available.  I am curious if because this trip was a month before I formally started my business, can I claim that under my meals and entertainment expenses as I paid for the event ticket and have to travel.