Changing Dates in ON24 - Implication in Sync?

I created a webinar in ON24 and synced it to my Marketo program. I did not promote the webinar or open registration.

I now have to move the webinar back 1 month. Has anyone ever done this before? Were there any issues? I want to make sure nothing strange happens like Marketo only "sees" the original webinar date or the same issue from ON24 - creating custom URLs that relate to my December date and not my January date.

Anyone done this before?