SAP Message RU546 - Changing the movement type from goods receipt to goods issue not allowed

Diagnosis
You tried to change a goods receipt item by changing the movement typein a good issue or a goods receipt by-product.

System Response
This transaction is not allowed due to subsequent errors in InventoryManagement. You can only swap between movement types goods receipt'by-product' and goods issue.

Procedure
Delete the goods receipt item and enter the goods issue or goodsreceipt by-product manually.