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Exact Online Fiscaal – Unable to submit returns due to false error "‘xxxx', de rijen x en x zijn aan elkaar gelijk" (NL)

Resolved Minor
March 13, 2026 - Started about 1 month ago - Lasted 4 days
Official incident page

Incident Report

You might encounter the error 'ProductIDSequence', de rijen x en x zijn aan elkaar gelijk. Dit is niet toegestaan. Corrigeer a.u.b. deze fout en dien vervolgens opnieuw in.' when trying to submit an income tax return for 2023 and 2024. We are investigating this issue, and we will update this page as soon as more information becomes available. Our apologies for the inconvenience.

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Latest Updates ( sorted recent to last )
RESOLVED about 1 month ago - at 03/17/2026 07:51AM

This issue has been resolved. You submit your return without receiving an incorrect error message. Our apologies for the inconvenience.

IDENTIFIED about 1 month ago - at 03/13/2026 04:02PM

We have identified the issue and are working on a fix. You might also encounter a similar false error in different returns which mentions identical rows, while the rows are different. You might as example also encounter an error on 'ValueAddedTaxPayablePartPrecedingPreviousFinancialYearSequenceConsolidationCalculationForReference' in the corporate tax (VPB) or errors on 'DitributionCalculationHeirSequenceReport' and 'Verkrijging per persoon' in the inheritance tax.

INVESTIGATING about 1 month ago - at 03/13/2026 09:56AM

You might encounter the error 'ProductIDSequence', de rijen x en x zijn aan elkaar gelijk. Dit is niet toegestaan. Corrigeer a.u.b. deze fout en dien vervolgens opnieuw in.' when trying to submit an income tax return for 2023 and 2024. We are investigating this issue, and we will update this page as soon as more information becomes available. Our apologies for the inconvenience.

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