CO40 — Convert Planned Order to Production Order
CO40 is used to convert an individual in-house planned order into a production order. It is most useful when MRP supply must become an executable discrete-manufacturing production order. Start with the exact document, material, organizational scope and business date, then follow status and document flow before changing configuration or master data.
Verified practitioner reference for CO40 — Convert Planned Order to Production Order. It covers purpose, practical use, key data, proof-in-data checks, S/4HANA context, common errors and related objects so the transaction can be used as part of an end-to-end SAP investigation.
Published 19 Sept 2026· 544 words
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Purpose
convert an individual in-house planned order into a production order. CO40 should be understood in the surrounding business flow: source document or requirement, master data, determined status and follow-on document. Capturing that chain is more reliable than treating the transaction as an isolated screen.
When it is used
CO40 is typically used when MRP supply must become an executable discrete-manufacturing production order. It is also valuable in project testing because it provides a repeatable point in the process. In production, narrow the document/material scope first and capture the before-state before mass actions or configuration changes.
How to use it in practice
- Open/select the planned order and confirm in-house production.
- Review quantity, dates and production master data.
- Set the intended order type/production plant where required.
- Convert and save the production order.
- Verify the production order and updated MD04 situation.
Key data objects
These are the fields and objects that most often explain the result in CO40. Record them in test evidence and support handovers.
- planned order — verify the exact value, status, validity and relationship to the source or follow-on document.
- planning/production plant — verify the exact value, status, validity and relationship to the source or follow-on document.
- order type — verify the exact value, status, validity and relationship to the source or follow-on document.
- quantity/dates — verify the exact value, status, validity and relationship to the source or follow-on document.
- generated production order — verify the exact value, status, validity and relationship to the source or follow-on document.
How to prove it in the data
Prove the scenario through chronology and document flow. Start with the source order, delivery, requirement or master record; capture the transaction status; then follow the resulting delivery, billing, production or procurement object. Reconcile quantities, dates and statuses using the same organizational scope. A correct diagnosis explains why SAP selected or rejected the object, not just what message appeared.
ECC vs S/4HANA
SAP Help explicitly documents CO40 as individual planned-order conversion to production order. For new S/4HANA designs, use current strategic applications and clean-core guidance even when a classic SAP GUI transaction remains available for support.
Common pitfalls and how to diagnose them
- Converting a planned order before production version/BOM/routing is valid. Check the source and follow-on document statuses before applying a workaround.
- Changing quantity during conversion without checking requirements. Check the source and follow-on document statuses before applying a workaround.
- Creating a separate CO01 order and leaving the planned order open. Check the source and follow-on document statuses before applying a workaround.
Whose problem this is
Primary ownership is the PP/M2D team, with MM, warehouse, Finance or Basis involved when the document flow crosses those components. A strong escalation includes document/material, plant or sales area, date, status, expected result and checks already completed.
Related SAP objects
Reviewed pages this object connects to in the ERPClimb knowledge graph.
Source: ERPClimb — https://erpclimb.com/sap-tcodes/co40ERPClimb is an independent platform and is not affiliated with SAP SE. Reference pages are written and reviewed by SAP consultants for learning and troubleshooting.