Credit Note allocations for Business using a VAT Cash Scheme - Blocked scenarios
If a business has enabled destination VAT in settings and is using a VAT Cash Scheme, credit notes and invoices that use a mix of home and destination VAT will be unable to be allocated to each other.
The same will apply to French businesses if either of the artefacts are VCA.
To allocate transactions to each other they must use the same VAT rules.
Allocating Home and Destination VAT transactions would result in inaccuracies on your VAT return.