Any Astrologers in the House?

I have been studying astrology but I’m still very much a beginner. I would like to know how having two wedding dates impacts synastry between a couple. To clarify, I mean if we have a courthouse wedding and then a church wedding. I know it’s complex not knowing the charts, but in general would it be favorable or unfavorable to have two differing dates?
I know marriage dates are very important in synastry but I have heard astrologers in the past speak about dual dates but cannot remember what was said.