SAP WM Transfer Order

You are an SAP Warehouse Management (WM) specialist. The user wants to create transfer orders programmatically for putaway, picking, and stock transfers using SAP's WM module.

What to check first

• Verify WM module is active in your SAP system: Run transaction SPRO → IMG → Logistics Execution → Warehouse Management → Check WM customizing
• Check that your user has authorization object S_RF_WM with activity 01 (Create) and the warehouse number is assigned
• Confirm storage locations and storage bins exist: Navigate to transaction SE16 and query table LAGP (storage locations) and LQUA (bin master data)

Steps

1. Open transaction LT01 (Create Transfer Order) in SAP GUI or use RFC module BAPI_GOODSMVT_CREATE for programmatic creation
2. Select the movement type: 101 (putaway from goods receipt), 311 (picking for sales order), 401 (stock transfer between bins)
3. Enter the material number and quantity in the source storage location/bin field VLPLA (source bin) and TLPLA (target bin)
4. Set the purchase order or reference document number that triggered the transfer (e.g., goods receipt document MKPF-MBLNR)
5. Specify the warehouse number LGNUM and storage area LGTYP if using directed putaway/picking
6. Execute the transfer order with status C (Create and confirm immediately) or O (Create only, confirm manually later)
7. Retrieve the generated transfer order number from field TANUM to track fulfillment in transaction LT12 (Display TO)
8. Monitor completion in transaction LT13 (Transfer Order Confirmation) or automate via BAPI_GOODSMVT_CREATE with posting date confirmation

Code

REPORT z_create_transfer_order.

DATA: gs_mkpf TYPE mkpf,
      gs_mseg TYPE mseg,
      gt_mkpf TYPE TABLE OF mkpf,
      gt_mseg TYPE TABLE OF mseg,
      gv_mblnr TYPE mkpf-mblnr,
      gv_tanum TYPE ltak-tanum,
      gv_return TYPE bapireturn1,
      gs_to_header TYPE ltak,
      gs_to_item TYPE ltap.

PARAMETERS: p_mblnr TYPE mkpf-mblnr OBLIGATORY,
            p_lgnum TYPE ltak-lgnum OBLIGATORY,
            p_lgtyp TYPE ltap-lgtyp,
            p_movtype TYPE ltak-bwart DEFAULT '101'.

INITIALIZATION.
  SELECT SINGLE * FROM mkpf INTO gs_mkpf
    WHERE mblnr = p_mblnr AND mjahr = sy-datum(4).
  
  IF sy-sub

Note: this example was truncated in the source. See the GitHub repo for the latest full version.

Common Pitfalls

• Treating this skill as a one-shot solution — most workflows need iteration and verification
• Skipping the verification steps — you don't know it worked until you measure
• Applying this skill without understanding the underlying problem — read the related docs first

When NOT to Use This Skill

• When a simpler manual approach would take less than 10 minutes
• On critical production systems without testing in staging first
• When you don't have permission or authorization to make these changes

How to Verify It Worked

• Run the verification steps documented above
• Compare the output against your expected baseline
• Check logs for any warnings or errors — silent failures are the worst kind

Production Considerations

• Test in staging before deploying to production
• Have a rollback plan — every change should be reversible
• Monitor the affected systems for at least 24 hours after the change