No they don't usually have many items on the invoice, but the fact is that at least 2 customers solved this problem by getting an enabler key (even though they could print invoices and had no complaints about the key).
More explanation @Paul:
When the issue occurs, should see if restarting presence or lookup helps. If so - that is the issue and should be sorted. First need to ensure that that is the issue...
Hello!
You can mark it as closed as option. If document is connected with other documents you can not delete it so you will not be able to delete PO, as you will not be able to remove Goods receipt...
