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QuickBooks Online error: Duplicate Name Exists Error: The name supplied already exists

  • October 8, 2025
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The Find Customer step is erroring out when I try run a zap involving a repeat customer.  

In THIS POST Sam B reported that the bug had been fixed a year ago, but it recently stopped working for me. 

I’ve tried unchecking “Create QuickBooks Online Customer if it doesn't exist yet?” and then using paths to split into “Update Customer” and “Create Customer” paths using the logic “Only continue if: 10. Zap Search was found status (Boolean) Is True” but both paths say that they wouldn’t have continued.

Any ideas what I’m doing wrong with the new paths?  Alternatively (and better still), is there any way I can avoid having to split this zap into paths at this point?  The zap is fairly long and complex, having multiple branches below this path, so I’d love to avoid splitting it this high up in the Zap.

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