MAPs and CRMS - Overcoming obstacles

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Hi All!

I need your expert views as users!

for our MAP - We us HubSpot, and for our CRM, we use Salesforce. All Salesforce data is replicated daily into HubSpot.

We use the 6sense iFrame.

We have hit some challenges on our IT Development Roadmap and we are severely limited on how many, if any, extra fields we can add to Salesforce MAP. We cant have to MAPs integrated in 6sense, so looking for work arounds?

SO - My question .. has anyone else chosen to use the MAP integration to HUBSPOT event though your principal CRM is Salesforce??