Quantity role &1 (&2) required for single-order staging

What causes this issue?

The system uses the staging method of single-order staging for the
current item (product &v3&, reservation item &v4&).
To use this staging method, quantity role &v1& (&v2&) must be active for
the item type.

System Response

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

INCLUDE /SCWM/DLV_NO_SAVE OBJECT DOKU ID TX

How to fix this error?

Contact your system administrator.

Procedure for System Administrators

The staging method of your item and the item type are incompatible. You
have the following options to correct the settings:
Change the determination of the staging method in the <ZH>Assign Bin to
PSA - Warehouse</> app (transaction <NP>/SCWM/PSASTAGE</>) or the
<ZH>Assign Bin to PSA</> app (transaction <NP>/SCWM/PSASTAGE2</>).
Change the settings in Customizing for <LS>Extended Warehouse Management
</> under <LS>Interfaces</> -> <LS>ERP Integration</> -> <LS>
Map SAP ERP Order Type to SAP EWM Item Type</>. If you use the item
types from the SAP defined BC Sets, use item type PCSO from BC set
<ZH>Production Material Request: Item Type Single Order Parts</> (BC
setID <NP>/SCWM/PMR_ITEM_SINGLE_ORDER</>) under <LS>Tools</> ->
<LS>Customizing</> -> <LS>Business Configuration Sets</> -> <LS>Display
and maintain BC Sets</>.
If you use your own item type, check that quantity role <(>&<)>v1& (
<(>&<)>v2&) is active in Customizing for <LS>Extended Warehouse
Management</> under <LS>Cross-Process Settings</> -> <LS>Delivery -
Warehouse Request</> -> <LS>Quantity Offsetting</> -> <LS>Define
Quantity Offsetting Profiles</>. Select the quantity offsetting profile
and choose <LS>Assignment of Quantity Roles</> in the dialog structure.
For more information, see the information provided at the following
links: <DS:DE./SCWM/DE_STAGING_METHOD>staging method</> and
<DS:DE./SCDL/DL_ITEMTYPE>item type</>.

Error message extract from SAP system. Copyright SAP SE.