NO CUSTOMIZATION IS NEEDED! This is standard material requirements planning (MRP). It can be processed through the Planning Worksheet (recommended) or the Req. Worksheet.
On the Stockkeeping Unit (SKU) Card, or Item Card in a single Location environment, for the Banana set the Reordering Policy to Lot-for-Lot. If all the demand falls on the same day, nothing further is required. If the demand (Sales) is spread over time, you can consider using the "Lot Accumulation Period" to group all the demand within a set time period (ex. 3D or 1W). If you are dealing with actual Bananas (perishables), I doubt this would apply.
Open the Planning Worksheet
Run Calculate Regen. Plan...
Set Start Date to Today (or tomorrow)
Set End Date (to beyond longest lead time of Items being planned)
Run it!
You should get a suggestion to create a single Purchase Order for the Bananas with a Quantity of 15. Again, this is assuming all the demand has the same date, same Location, and you don't have any Bananas in inventory. You will also be able to click "Order Tracking" to see exactly why the suggestion was made, which will list each of the Sales Orders. Furthermore, when the Purchase Order is created, you'll still have the "Order Tracking" button to see why that PO Line exists.
I would strongly encourage you to reach out to your partner for training on the Inventory Planning capabilities within Business Central.
P.S. If this was helpful in resolving your question, please mark it as a Verified Solution to help the other forum users.
P.S.S. Don't use Order Planning!!!
Best Regards,
Ben Baxter
Accent Software Inc