(The positions discussed are all contractor positions) - Canada
I already signed a contract for a PT offer with Company A about a week ago. It states that the agreement can be terminated with 6 weeks notice.
The orientation for this position is supposed to be tomorrow afternoon. This morning, I got a call from Company B who offered me a FT position that I did not interview for (I was only interviewing for PT positions at this time). I will be accepting this position, but this means I will have to back out of my contract with Company A.
Due to certain circumstances, Company B may not be able to get me the contract immediately, with the likelihood of getting the contract after the orientation day for Company A.
I think I should let Company A know as soon as possible that I will be rescinding my acceptance of their offer, but some people have suggested that I wait to get the contract before letting Company A know. However, this would mean I will be wasting Company A's time by attending their orientation tomorrow when I know I'm going to be accepting another offer.
What are your suggestions?