Where the Invoice Consolidation is 'Per Shipment' on the "Customer Card", this means you want Business Central to produce 1 invoice per "Posted Sales Shipment" from 1 "Sales Order" so that if multiple "Posted Sales Shipments" have been created from a "Sales Order", each one will create its own Invoice.
Opening up a "Sales Order" for the Customer you have this set up for, create the order as usual, including the Items you wish to sell. Firstly, there are limitations to the user with regards to invoicing this manually, so for example invoices can only be created via the new "Sales Order Invoicing" routine mentioned below. When a User tries to select Post on the "sales order" ribbon, only the 'Ship' option will appear.
To create invoices for this type of Invoice Consolidation, in the search bar, find "sales order invoicing" which will open up the request page below. Here, you can choose what you want to schedule, so in the below example I have just selected 1 customer to run as a batch. This example would then look at all the "Posted Sales Shipments" for the Customer '10000' and create the Invoice(s) so long as the Last Invoiced Date + the Invoice Frequency Date was had been reached. So if my "Sales order" had 2 "Posted Sales Shipments", than from this "Sales Order", I would have 2 invoices (1 per shipment).
Choosing OK on the request page above will run the invoice creation now (but will still only create any invoices based on the Last Invoiced Date and Invoice Frequency from the "Customer" card). The Schedule option above will allow you to set up recurrence on a Job Queue. This means this process does not need to be repeated manually, rather Business Central can use the recurrence you setup in the "Job Queue Entries card" to then run a check to see if the Last Invoiced Date + Invoice Frequency = 'Today'. Where it is, your Invoice(s) will be created and the Last Invoiced Date will automatically update with 'Today's' date. Where the calculation has not been reached, the check will be done again on the next date you have setup recurrence and the Last Invoiced Date will remain as it was with no change.
The "Posted Sales Invoice" uses the Get Shipment Lines functionality to draw out the relevant lines to include, which will appear on the invoice as per below image.
In the video below, you can see how the invoices are created and how the shipment information is displayed per Invoice, both for "Order by Order" and "Per Shipment" examples.