For 2-step picking, the picking process is divided into 2 steps.
In the first step, the entire quantity of needed
material(s) is picked to fill requests (for example, several
deliveries or transfer requirements) for the material(s). During
the second step, the total quantity is divided up and allocated to
match the individual requests.
Using this picking method, the picking process can be optimized.
This picking method is especially useful when picking large
quantities of material for process-oriented picking such as picking
waves or for a transport.
There are 2 ways to carry out 2-step picking:
2-step picking in one step (1-step process)
For this method, the removal and the
allocation of the total quantity to the individual requirements is
carried out in one step. For example, after one or several
materials have been removed from stock, the same picking team
(picker) allocates the entire quantity to the individual
requirements in the staging area. Afterwards, the entire picking
process is confirmed as a single activity.
2-step picking in two steps (2-step process)
For this method, the removal of
materials from stock and the allocation of the total quantity to
the individual requirements takes place in two separate steps. In
the first step, the total quantity of one of several materials is
removed from stock, moved to an intermediate storage area and
confirmed. In the second step, the total quantity is divided to
fill the individual requirements. These are then confirmed
Characteristics of 2-Step Picking
Two-step picking can be used to pick materials for both
deliveries and transfer requirements.
You can activate 2-step picking separately for deliveries and
for transfer requirements. You can activate 2-step picking for each
material. For this "material-dependent" picking, you define whether
the picking is to take place directly from the warehouse or using
the 2-step process in the material master record.
The relevance for 2-step picking is determined when the system
generates the reference documents (deliveries or transfer
requirements). The system marks the relevant items in the reference
documents accordingly. You can influence the relevance at the level
of the material and at the level of the reference document.
Additionally, customers can redefine their own 2-step picking
characteristics via customer exit MWM2S001.
Two-step picking was developed using the reference number as a
basis. The reference number serves as a means to combine several
reference documents that are to be processed in a single picking
process. The quantities of each material to be removed are
accumulated using the reference number. The reference number can
also be used to allocate materials to the individual requests for
multiple processing. Additionally, you can carry out other
functions associated with the reference number, such as printing
Two-step picking consists of three different
Direct picking takes place when
two-step picking is material- dependent (defined in the material
master). In other words, part of the material is picked using the
2-step method and part of the material is picked
directly from the warehouse. (This can take place
within the same reference number.)
For 2-step picking, the following new functions were
After the reference number has been created, you can display
the 2-step characteristic of the reference number. You can
influence the 2-step characteristic manually using a maintenance
function ( Transfer order -> 2-step picking ->
A new function was developed to generate transfer orders using
a reference number to remove the accumulated quantities of
Using an evaluation function, you can analyze reference numbers
that are relevant for 2-step picking.
Two-step picking is imbedded in the following functions:
You can change or define the relevance of 2-step picking
manually when creating the reference number.
When printing and confirming the reference number, you can
select the individual steps of 2-step picking.
Change system parameters in customizing
You activate and define controls for 2-step picking for
deliveries in the shipping interface: