Synchronization from SuiteCrm to other crm (Sage 100)

I am crm consultant and I have for my customer to synchronize invoices and quotes from suitecrm (hosted in Amazon EC2) to sage, a classic processus …
It does not need to be in real time so as I could consider webservices as well as other ways. Could you advice me about webservices (documentation with examples), softwares, ETL, … to do that ? In your opinion, what would be the best way ?
Thanks you very much :cheer:

SuiteCRM is based on SugarCRM so the documentation regarding web-service of sugarcrm will be helpful for you

and some php rest api examples

best regards