2-Step Picking Process 

Purpose

Using this picking procedure, you can optimize the picking process in your warehouse. This procedure is particularly useful if you remove large quantities of material for several outbound deliveries (for example, via wave picks).

You have activated 2-step picking in the warehouse number. For more information, see 2-Step Picking.

You have defined strategy R as the putaway and stock removal strategy in the interim storage area (intermediate storage area), which you use for material staging for 2-step picking.

1. You form a group of the outbound deliveries or transfer requirements relevant for picking.

For more information on creating a group, see Creating a Group.

2. As soon as you form a group of outbound deliveries or transfer requirements, the system determines the relevance of the affected materials for 2-step picking

You can redefine the relevance of the individual material items for 2-step picking, based on the group.



This is only necessary if you use customer exit MWM2S001 with other selection parameters than those defined in the system to define the relevance of the material for 2-step picking.

You can find more information in the system documentation on Customer Exit MWM2S001.

If you switch to the detail view of the assigned outbound deliveries, you can change the relevance for 2-step picking for each outbound delivery.

3. You create the withdrawal transfer orders for the group.

In the SAP menu, choose Logistics ® Logistics Execution ® Outbound Process ® Goods Issue for Other Transactions ® Picking ® Create Transfer Order ® Via 2-Step Picking.



Movement type 850 is defined for 2-step picking in the standard system.

4. You execute the goods movements for the withdrawal step and transfer the materials that you have picked for the group to the interim storage area.
5. You confirm the transfer orders for the withdrawal step and, in doing so, you confirm that the necessary materials are in the interim storage area.

You have completed the first stage of 2-step picking (withdrawal).

6. You create the transfer orders for the allocation step (second step of 2-step picking) in multiple processing.

Work Method	Process Flow
Outbound Delivery to Goods	You create a separate transfer order for every outbound delivery or transfer requirement in the group. On the basis of the printed transfer order, you gather all of the different materials required for the outbound delivery or transfer requirement in the interim storage area. You can only begin with the allocation step when all of the required materials are in the interim storage area. In the menu of the transaction Wave Pick Monitor, choose Subsequent Functions ® 2-step Picking ® Allocation/Direct Picking ® Start Group.
Goods to Outbound Delivery	When creating the transfer order, you sort the transfer order items to be created for the group according to material number. The system creates a separate transfer order for each material in the group using a transfer order split. You allocate this material to the corresponding outbound deliveries on the basis of the printed transfer order. In the menu of the transaction Wave Pick Monitor, choose Subsequent Functions ® 2-step Picking ® Allocation/Direct Picking ® Start Group.

 

7. You release the group for printing the transfer order papers or for transfer to an external system.

In the menu of the transaction Wave Pick Monitor, choose Subsequent Functions ® 2-step Picking ® Allocation/Direct Picking ® Release/Print.

8. You execute the goods movements for the allocation step and transfer the materials for the group to the goods issue zone.
9. You confirm the transfer orders for the allocation step and, in doing so, you confirm that the necessary materials are in the goods issue zone.