QuickBooks

Duplicate customers or invoices in QuickBooks

Why duplicates appear (unlinked customers, manual entry, re-sync after edits) and how to merge in QuickBooks and relink in Zentive so it stops.

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Owner/AdminIntegrations3 minutesUpdated Sep 23, 2026Current instructions
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Customers

  1. 1

    Cause

    A Zentive customer was not linked to the existing QuickBooks customer, so the first invoice created a new one.

  2. 2

    Fix

    In QuickBooks, merge the duplicate into the original. In Zentive, Settings → QuickBooks → Customers, relink the customer to the surviving record. Future invoices post there.

Invoices and payments

  1. 1

    Cause

    The invoice was entered by hand in QuickBooks and also synced, or an old sync retried after an edit.

  2. 2

    Fix

    Delete the manual copy in QuickBooks; keep the synced one (it carries the Zentive invoice number). Refunds are posted once by Zentive; if you also entered one manually, remove the manual entry.

  3. 3

    Prevent

    Let Zentive create invoices and payments in QuickBooks; enter only what Zentive does not sync (Stripe fees, write-offs, non-Zentive sales).

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