Lack of manual journals would be a non-starter, I am actually not clear how a business could possibly run their books without manual journals.
An example: you make something that uses 5 inputs. I have inventory and cost of goods sold accounts for each of those inputs, but my invoices out to customers only reference the final product. This is where ERPs add insanely complex inventory management solutions. However, the simple way to deal with it instead is to use a manual journal to reconcile your inventory and cost of goods sold accounts monthly or however often you like.
An example: you make something that uses 5 inputs. I have inventory and cost of goods sold accounts for each of those inputs, but my invoices out to customers only reference the final product. This is where ERPs add insanely complex inventory management solutions. However, the simple way to deal with it instead is to use a manual journal to reconcile your inventory and cost of goods sold accounts monthly or however often you like.