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When you create an STO, do you know it is one-step or two-steps transport? When you

create delivery for the STO, can you judge if the movement type system determined is correct or

In this blog, let me introduce my way to check these points.

★Whether the STO is considered as 1-step?

As you can see in the picture above, system check table T161W with supplying plant+ recieving plant +
document category.
The document type of the STO is not a key for determination at all. You can check

table T161W to see if this STO is considered as one-step or not.

★How system determines the movement type?

    Afterwards, system checked the delivery item category, in T-code VL03N you can see it,

    for example the delivery item category is NLRN. Then in the following customizing:


         Sales and Distribution ->
               Sales -> Sales documents ->
                      Schedule lines -> Assign schedule line categories

system founds the schedule line category, for example it is NR. At last, in T-code VOV6, for Sched.line cat NR,
you can see there is setting: 



    Movement Type             671

    Movement Type 1-Step   677


Therefore if the STO is one-step transport, then the movement type will be 677 in the delivery. Otherwise it will
be 671.

Hope this can be helpful. You may also want to read KBA 1774717 - Table T161W - document type not taken into account.