Explanation
Add items to an operation
To add items to an operation, follow these steps.
1. Go to Inventory management > Periodic tasks > Quality management > Non conformances.
2. In the list, select the nonconformance that you want to update.
Note: You can add or update operations only for nonconformances that are approved.
3. On the Action Pane, select Related operations.
4. On the Related operations page, select the operation that you want to add items to.
5. On the Action Pane, select Items.
6. On the Related operations page, on the Action pane, select New to add a row to the grid. Then set the following fields for new row:
Item number - Select the product that will be consumed as part of the selected operation.
Quantity - Enter the number of items that will be consumed.
7. Repeat the previous step for each additional item that you must add.
8. Close the pages.
Reference:
https://docs.microsoft.com/en-us/dynamics365/supply-chain/inventory/tasks/create-process-non-conformance