Zoho set up check and integration adjustments

Recently set up Zoho books I need to add a discount field and check the set-up is correctly done. In Zoho Crm i need the estimate fields to match the zoho books estimates, and in zoho campaigns i need to check the set-up and make sure the campaigns are set correctly with some adjustments needed if required. This is a generalised task for an all-around ZOHO expert paid hourly no agency, direct dev expert sort after, Urgent requirement sensible rates considered. On-going possibility for the right freelancer.