Companies which use the fixed asset functionality in vendor invoices (automatically create an fixed asset when product receipt/invoice posted) faces the problem that they cannot post invoices with more then one fixed asset lines.
Companies regularly receive invoices from their vendor in which more than one fixed asset line exists.

However, currently D365 does not allow to post it with one voucher number. This can be traced back to the parameter “Allow multiple transactions within one voucher” in General Ledger.
If deactivated it can not be proceeded. To activate it is not an option, as Microsoft does not recommend it (https://go.microsoft.com/fwlink/?linkid=869389) and also announced to remove this parameter some day.

I suggest enabling Vendor Invoices (only one vendor) with x-times fixed asset lines with one voucher number.
This should work when parameter “Allow multiple transactions within one voucher” is deactivated.