Is this a 2-way integration?
No. This integration enables you to send Invoices from Productive to Xero, but not the other way around.
However, if the Payments sync option is turned on, payments will be automatically created in Productive. You can read more here.
Do invoices get sent automatically or do I need to do it manually?
If you want to send an invoice from Productive to Xero, you need to manually click Send invoice to Xero on each Productive invoice.
Can I change account codes after I have completed the integration?
Yes, Xero Account codes mapped to Productive service types can be changed at any moment in Integration properties. For more information on how to set up custom mapping, click here.
Are there any requirements to set up the Xero integration?
You need to be a Productive account Admin. That's the only requirement.
Can I delete the integration to Xero?
Yes. You can completely delete a Xero integration. Explained here.
What happens if I disconnect the integration? Will I lose any data?
No, everything will stay as it is, you just won't be able to copy invoices to Xero anymore.