Allow an item more than once in a sales order

Why is there a restriction that makes it impossible to add multiple rows of the same item in a sales order? Since it seems to be possible to specify the delivery date for each row (by adding a custom field), it would be very useful if one could have orders with many deliveries of the same item on different dates.

Yeah - I think that validation does not check for custom fields… Can you raise a GitHub Issue for this?

Ok, I have now raised an issue: