My recommendation is that any communication in relation to contracts should be included in the Lobbying Act, and that's what they've done in provinces, except anything that is a communication within the parameters of a public process, like RFPs or standing offers. Those that are already transparent don't need to be covered by the Lobbying Act.
Anything outside of that, including that phone call to say, “Hey, I think we align, and I think we should be able to work together” would possibly be outside of a context that's in the public domain, and that should be covered.