To resend the reports, Void the invoice in Xero.

Void Xero invoice:

1. Open invoice in Xero
2. Remove all payments from the invoice, click on the Payment > Options > Remove and Redo
3. Click Invoice options > Void

Resend the Vend register closure:

1. Open Vend
2. Reporting > Register Closure
3. Click the Summary to open the closure
4. Click More > Resend Register Closure invoice to Xero.