We do map the reference field in xero to ConnectWise In both instances for Invoices and Purchase Orders, we map the information that is either:


A) Commonly used by our (your) accounts team to find the invoice in xero.
B) Required by the customer for their AP
 
The following is added to the reference field in CW where the following exists (or has been entered in ConnectWise):

Standard Invoice:

PO Number > Reference: "Your: [PO Number]"

How the Invoice appears in CW:



How the invoice appears to the client when emailed from CW:



How the invoice appears in Xero Sales once Synced:



How the invoice appears in Xero if you drill into it:



How your invoice appears to the client if emailed from Xero:




Project / Agreement Invoice:

Project > Reference: "Project: [Project Name]"
Agreement > Reference: Your: [Agreement purchase Order]

How the agreement appears in CW:



How the agreement invoice appears in CW:



How the Agreement Invoice looks to the client when emailed from CW:



These were the fields that were exposed in the API, as not all reference fields are exposed through the Accounting Interface

If you are looking to use procurement, then we also map the "Purchase" sale invoice fields from the PO as follows:

Purchase Order:

Vendor Invoice Number > Reference : [Vendor Invoice Number] | [PO Number]

How the PO appears in CW:



How the PO appears when emailed to the Vendor from CW:

http://www.wise-sync.com/uvimages/218099_CW_PO%20Vendor_645x264.jpg

How the PO appears when synced to Xero:



How the PO appears from Awaiting Payment in Xero:



How the PO appears if printed from Xero:


If either of the additional reference fields are not used for the record, then it will not add the additional details, such as the | or the "Your:" to the reference.