Access Denied Sy-subrc 15 [upd] May 2026

The error sy-subrc = 15 ("Access Denied") in SAP ABAP is a classic "wall" that developers hit, usually when working with frontend-to-backend file transfers. It primarily occurs during the execution of function modules like GUI_DOWNLOAD or GUI_UPLOAD when the SAP GUI is blocked from interacting with the local file system. The "Review": Why It Happens and How to Fix It

• The Problem: Your ABAP program tries to access ../../etc/passwd. The SAP kernel or the OS security policy explicitly denies access to paths containing .. (parent directory reference).
• Result: Immediate sy-subrc 15 to prevent directory traversal attacks.

In the quiet, air-conditioned hum of an SAP data center, few return codes elicit a groan as heavy as SY-SUBRC = 15. access denied sy-subrc 15

Step 3: The Proactive Check (Using Function Modules)

Do not just OPEN DATASET. Use CHK_FILE_ACCESS to pre-validate: The error sy-subrc = 15 ("Access Denied") in

Try saving the file to a "safe" location like your Documents folder or Desktop. If it works there but not in the original folder, you likely need to contact your IT department to adjust your folder permissions. 3. Verify the Path in ABAP The Problem: Your ABAP program tries to access

✅ 3. Use ST01 (Authorization Trace)

• Start trace → Run your program → Stop trace → Analyze.

If using GUI_DOWNLOAD, check the CONFIRM_OVERWRITE parameter; if set, a user clicking "No" on the overwrite popup can also trigger sy-subrc = 15.

The typical return code values for AUTHORITY-CHECK are: