Since:

• Goods Receipt is successful

• Stock is visible in EWM

• Manual Posting Change works

• No queue errors or dumps

The problem is almost always in automatic posting change determination logic.

Let’s analyze it step-by-step.

1️⃣ Check QM Integration First (Most Common Cause)

If QM is active, after GR:

• Stock is posted to Quality Inspection (Q) stock

• Automatic posting change to Unrestricted (F) happens only after Usage Decision (UD)

👉 Go to ERP side:
Transaction QA32

Check:

• Is inspection lot created?

• Is Usage Decision completed?

If UD is not completed, posting change will NOT trigger automatically.

This is the most common real-project scenario.

2️⃣ Verify Follow-Up Action Configuration

Path:

SPRO → EWM → Cross Process Settings → Posting Change → Define Follow-Up Actions

Check:

• Source stock type (e.g., Q)

• Target stock type (e.g., F)

• Warehouse number

If follow-up action is not maintained correctly, system will not generate Posting Change WT.

3️⃣ Check Stock Type Determination

Path:

SPRO → EWM → Cross Process Settings → Stock Type Determination

Ensure:

• Correct stock type group

• Correct availability group

• Proper mapping maintained

If mapping is missing, automatic logic will not work.

4️⃣ Verify Warehouse Process Type (WPT) Determination

Path:

SPRO → EWM → Cross Process Settings → Warehouse Task → Determine Warehouse Process Type

Check:

• Posting Change indicator active

• Correct WPT assigned

Even if WPT exists, wrong determination settings will stop automatic WT creation.

5️⃣ Check Product Master Settings

Transaction:

/SCWM/MAT1

Under Warehouse Data:

• Stock type group maintained?

• Posting change indicator maintained?

If not, automatic posting change will not trigger.

6️⃣ Logs & Monitoring

If no error is shown, check:

✔ /SCWM/MON → Posting Change Node
✔ SLG1 → Object: /SCWM/POST
✔ SMQ2 → Queue status
✔ /SCWM/PRDI → Delivery status

🔎 Real Project Example

In one Embedded EWM project:

Issue:
Stock remained in Quality stock after GR.

Root Cause:
Usage Decision was not completed in QA32.

After completing UD, automatic posting change WT was created.

No configuration change required.

🛡 Safest Approach in Production

1. Do NOT change configuration directly.

2. First verify QM status.

3. Validate stock type mapping in QA system.

4. Transport changes properly if needed.

5. Test with one document before mass processing.

🎯 Final Conclusion

If Posting Change is not triggered automatically after GR in SAP EWM, it is usually due to:

• Pending Usage Decision (QM)

• Missing follow-up action configuration

• Incorrect stock type determination

• WPT determination issue

• Missing product master settings

Structured troubleshooting will identify the issue without risky changes in production.