Quantity entered greater than quantity still to be invoiced

What causes this issue?

You have entered a quantity which is larger than the quantity for which
delivery costs are still to be invoiced.

How to fix this error?

Check your input and correct it if necessary. You may have to choose
<LS>Cancel</>. Call up the function <LS>Delivery costs</>
--> <LS>Choose</> again to obtain the correct default values.

Error message extract from SAP system. Copyright SAP SE.