Exact Online Fiscaal - "Opgaaf Werkelijk Rendement" is rejected with error: "':/510: Validatie bij de uitvragende partij niet gelukt" (NL)

This issue has been resolved. You can resubmit the "opgaaf werkelijk rendement” without incorrectly receiving the error: ":/510: Validatie bij de uitvragende partij niet gelukt". If the declaration is still rejected with this error message it means that an invalid character, such as '/', is used. You can resolve this issue by opening the declaration and adjusting the selected field before resubmitting. Our apologies for the inconvenience.

You may experience that the declaration for "Opgaaf werkelijk rendement" has been rejected with error message ":/510: Validatie bij de uitvragende partij niet gelukt".
We are investigating the issue and we will update this page as soon as more information becomes available. Our apologies for the inconvenience.