We recently merged with another company and each have our own Marketo instances. We are looking for the easiest, smoothest way to integrate the two with minimal disruption to the businesses. I've seen a few other threads on here that have been helpful, but wanted to pose the question again: What is the best way to integrate 2 instances (we will be combining SFDCs to 1), while maintaining historic data and data integrity? Does any one have experience? Questions we should be asking? Pitfalls we should be aware of? Advice? Concerns?
Any advice here on the best way to go about this is greatly appreciated!