Specify a reorder point and replenishment quantity

What causes this issue?

You have decided in favor of storage location MRP for this material.
Since separately planned storage location stocks are planned using the
reorder point planning technique, a reorder point and a replenishment
quantity are required.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Enter a reorder point and a replenishment quantity.

Error message extract from SAP system. Copyright SAP SE.