We have integrated several Business Catalyst websites with Xero. You can read more about that Business Catalyst API integration and others at https://www.postiecrew.com/adobe-business-catalyst/

OneSaas no longer do integrations between Adobe Business Catalyst and Xero. Adobe built a new API feature and OneSaas didn't support it.
So right now the best option for integrations is to find a good Adobe BC partner.

You can find some partners on the home page of their website - http://www.businesscatalyst.com/
Or contact Pretty on 02 9212 4485 or brett@prettydigital.com.au and we can scope your requirements.

Pretty Digital does Adobe Business Catalyst to XERO API integrations with custom setup in between, like only sync invoices that are paid in full and anything else you need

Hi everyone,

OneSaas (www.onesaas.com) is a SaaS integration solution for cloud based applications. We currently have both Xero and Adobe Business Catalyst connectors. Visit http://www.onesaas.com to create a free account and try the Xero and Business Catalyst integration. You can e-mail us at support@onesaas.com with any questions!

Regards, 
Pete
OneSaas - SaaS to SaaS Integrations Made Easy

We have integrated BC Ecommerce with Xero. Ready to go now... email matt@etraction.co.nz for more details. Cheers, Matt

It just seems that both BC and Xero products are made for each other. If anyone has news that someone has integrated the 2 please let me know.

I'm glad Chris has mentioned Adobe BC - this has got to be a massive opportunity for Xero now Adobe run BC. The user community is growing fast and will help spread the Xero word.

Adobe Business Catalyst can be linked to Quickbooks.

I'd love to see Xero available in a similar way.