What are the best practices for sync and view set up, were are currently out of syncs

What are the best practices for sync and view set up, were are currently out of syncs

I work for a company that regularly goes to trade shows and when we leave the tradeshows we come back with a list of badges scanned in an excel document that we upload into Zoho and then use specific views for the specific trade show and have other syncs for a monthly newsletter, software updates, etc.

I kind of figured that we had unlimited views and syncs and the other month I was trying to make another view for a tradeshow for an email drip campaign and was notified in the Zoho crm that we are out of them.

What is the best practice for trying to achieve my goal of creating new syncs and views and not running out of them?