AB Invoicing (the old programme) with version below 10 has databases with a different structure from the newer versions (version 10 and upwards).
You can not just move the databases from an older programme to the latest version but have to use this transfer programme.
Use this free programme if you want to migrate your data to the new programme.
The transfer programme is free but you will have to buy licenses for the new programme as a new license system has been introduced.
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