When I try to create an invoice for a POS order, Odoo shows a message that says The operation cannot be completed: A transaction with the same name already exists. I suppose it is because of the correlative, since when I issue the invoice from accounting or sales, the correlative is always 1, and I must manually enter the number that follows. Your support can save me from this error that is affecting me immensely and I hope for your valuable contribution in this case.
hello,
I am having the same issue. Did you successfully solve the problem?