The synergy of Xero and SuiteCRM is a double bonanza, as SuiteCRM Xero Accounting Integration by Fynsis brings a seamless flow of data of customers from inside your CRM to the actual billing and invoicing system in useful handshake so the bills can be generated within CRM.
Other add-ons of interest
Glances - Integrate All Your Applications
Accomplish More Every Day. Spend your time on getting things done, not on finding information. Glances securely connects all of your apps and provides a simplified view of the data you need right when you need it, in real time.
Suite to Xero
SuiteCRM connected to Xero
Create Accounts AND Invoices (ACCREC AND ACCPAY) in Xero from your Detail OR List views in SuiteCRM - no more double entry - Send all your SuiteCRM records to Xero - once there update them TO or FROM Xero, quick links created to those records