Orders due for shipping are restricted by delivery block (see long text)

What causes this issue?

You want to select orders that are due for shipping so that you can
create deliveries and you only want to display those order items that
have been blocked for delivery.

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

System Response

The system only displays those order items in the list of orders due
for shipping that meet your selection criteria and which have a
shipping due date index.
Certain business processes set delivery blocks and
<DS:TRAN.OVB9>prevent</> the shipping due date index from being written
(for example, a credit block). Therefore, they do not appear in the
overview of orders due for shipping, although you have explicitly
included the delivery block in the selection criteria.
Orders with a delivery block in the order header normally never write a
shipping due date index. They can only be delivered if you create a
delivery online (transaction <DS:TRAN.VL01>VL01</>) and then, only if
the delivery block in the order header has not been
<DS:TRAN.OVLX>assigned</> to the delivery type that is used for
delivering the order.
If you have configured Customizing for table <DS:TRAN.OVLS>TVLS</> so
that the delivery block is valid for the order, you can set the
delivery block manually in the order header or it can be determined
from the customer master.
You can see an overview of orders blocked for delivery in transaction
<DS:TRAN.V.14>V.14</>, or by going to the Sales menu.
Regardless of the delivery blocks in the order header, when you create
a delivery, the system also checks whether the ship-to party has been
blocked for delivery by checking whether a delivery block exists in the
ship-to party's customer master record that is assigned to the delivery
type of the current delivery. This check can only take place if the
order can be delivered at all, in other words, if there is no delivery
block in the order header (and the delivery block is not copied from
the ship-to party's customer master record to the order header, see
above).
General
=======
If the delivery block for an order or customer has been assigned to a
delivery type, this can prevent you from creating a delivery (see
below)
If the delivery block is not assigned to a delivery type, you are
normally permitted to create the delivery, but it then prevents certain
subsequent functions, such as posting goods issue or picking.
Delivery due list block (VL04/VL10):
Transaction <DS:TRAN.OVLS>VL04</> also displays the shipping due date
index of blocked orders in the delivery due list, for which the
delivery block is not valid for the delivery due list (VL04) and
highlights them in red.
In an extended shipping due list, the delivery blocks in the order
items are displayed as specified in the selection screen and output in
the list. You can use a filter at item and schedule line level.
Blocking a ship-to party after order entry:
===========================================
Actual situation:
If a ship-to party is blocked for delivery, the delivery block in the
customer master record only affects the delivery of orders without a
delivery block, if the delivery block has been configured in
Customizing so that it is not automatically copied from the customer
master record to the order when you create the delivery (tvls-speau =
'X').
Advantage:
1. You can create a delivery manually by removing the delivery block
that was automatically copied to the order, even if the customer is
still blocked for delivery when you create the delivery.
2. Orders that were entered before the ship-to party was blocked can
still be delivered if the delivery block is copied from the customer to
the orders.
3. If you set the delivery block in the customer master record after
you have created the order, it only prevents you from creating a
delivery if the block is copied from the customer to the order.
Disadvantage:
You cannot block a customer by copying to the order or immediately
prevent deliveries from being created for this ship-to party.

How to fix this error?

Choose the delivery blocks you require.

Procedure for System Administrators

<DS:TRAN.OVB9>Prevent</> shipping due index from being written
<DS:TRAN.OVLX>Assign</> delivery block to delivery type
<DS:TRAN.OVLS>Assign</> business processes for which the delivery block
should be valid.
Modification note:
The SAP standard display of the extended shipping due index also
displays schedule lines blocked for delivery, even if the open delivery
quantity is 0. You can use a customer modification in the list profile
to prevent this by setting the show_0_quan_blocked field to 'N'
<DS:REPO.RV56SH08>MAIN(RVV50R1T)</>.

Error message extract from SAP system. Copyright SAP SE.