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# Integrations call error: The booking contains a booking line without a VAT code

**Solution:**

The error message indicates that you are trying to book an invoice without a VAT code. However, in Minox a VAT code has been assigned to the general ledger account to which you are trying to book. This leads to an incorrect Minox booking.

1. Check whether the VAT code is set correctly on the general ledger account in Minox.