You may have customer supplied inventory that you need to account for. Here is the process to show that on MRP.

• First navigate to your config settings and find “Customer Supplied Inventory - Exclude From Allocation”. Set the value to 0.
• With this config turned off, customer supplied material will now be included in allocation and shown on MRP.
• When displayed on MRP there will be a purple hyperlink calling out that this material is sometimes customer supplied.
• Follow that hyperlink to the part waterfall, and any orders that this part is customer-supplied on will show in purple. Orders where you purchase the part will be shown in the standard black.