Deleting Leads - best practices
We have over 100,000 potential junk leads in Marketo and it's really slowing down our database performance. I would love to delete them but our SFDC ops team is objecting to deleting them on the SFDC side. Then we have to deal with the common issue that even if we do delete them in Marketo, they will come back anytime there is an SFDC sync. I know there is an option to create a field like what is suggested here: Managing your Marketo database size | RMS to hide these leads from Marketo.
Are there any other solutions out there? How do you handle when you want to delete or even just merge leads and don't get buy-in from the SFDC team to do the same on the SFDC side? We have 40K+ duplicates and have already purchased EZ Merge but are running into a similar situation where the SFDC admins do not want us to merge them in SFDC. Any suggestions on what we could do?