Error

Error Code: 609

SAP S/4HANA Error 609: Invalid CESU-8 String

📦 SAP S/4HANA

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Description

This error indicates that an API call to SAP S/4HANA received a string that does not conform to the CESU-8 encoding standard. It typically occurs during data exchange with external systems or when processing user input that contains malformed or incompatible characters.

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Error Message

ERR_API_INVALID_CESU8_STRING

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Known Causes

3 known causes

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Incorrect Data Encoding

Data sent to the SAP S/4HANA API is encoded in a format other than CESU-8, leading to parsing failure.

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Malformed Characters

The input string contains characters that are not valid within the CESU-8 specification or are improperly formed.

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Client Encoding Mismatch

The API client or integration middleware is not configured to send data specifically using CESU-8 encoding.

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Solutions

3 solutions available

1. Identify and Correct Invalid CESU-8 Data in SAP Tables advanced

Locates and rectifies problematic character data within SAP tables that are causing CESU-8 encoding issues.

Identify the specific SAP table and field where the invalid CESU-8 string is occurring. This often requires analyzing application logs or debugging the SAP transaction that triggers the error. Look for messages indicating which object or data element is being processed.

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Connect to your SAP HANA database using a SQL client (e.g., SAP HANA Studio, hdbsql).

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Query the identified table and field to find rows containing potentially invalid characters. CESU-8 issues often arise from characters that are not valid in the expected encoding. You can try to cast the column to a known valid encoding and then check for errors or unexpected results.

SELECT * FROM "YOUR_SCHEMA"."YOUR_TABLE" WHERE "YOUR_FIELD" LIKE '%\x00%' OR "YOUR_FIELD" LIKE '%\x01%' OR ... -- Add other potentially problematic hex characters

-- Alternative approach: Attempt to convert to a known valid encoding and check for errors
-- This might require knowledge of the expected encoding (e.g., UTF-8). 
-- The following is a conceptual example, actual conversion functions might vary.
SELECT "YOUR_FIELD", TRY_CONVERT("YOUR_FIELD" TO VARCHAR(255) ENCODING 'UTF-8') FROM "YOUR_SCHEMA"."YOUR_TABLE" WHERE TRY_CONVERT("YOUR_FIELD" TO VARCHAR(255) ENCODING 'UTF-8') IS NULL;

Once the problematic rows are identified, create a backup of the affected table or the entire database. This is a critical step before making any data modifications.

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Update the identified rows to correct or remove the invalid CESU-8 characters. This might involve replacing specific characters, removing them, or re-entering the data correctly.

UPDATE "YOUR_SCHEMA"."YOUR_TABLE" SET "YOUR_FIELD" = REPLACE("YOUR_FIELD", 'INVALID_CHAR', 'CORRECT_CHAR') WHERE ... -- Specify conditions to target problematic rows

-- Or if removing invalid characters is appropriate:
UPDATE "YOUR_SCHEMA"."YOUR_TABLE" SET "YOUR_FIELD" = REGEXP_REPLACE("YOUR_FIELD", '[^\p{L}\p{N}\p{P}\p{M}\p{Z}\p{S}\p{C}]', '', 1, 0, 'u') WHERE ... -- This is a general example; character set might need adjustment.

After applying the corrections, re-run the SAP transaction or process that previously failed to confirm the error is resolved.

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2. Verify and Adjust SAP System's Character Encoding Settings medium

Ensures SAP's internal character encoding configurations align with the database and client applications.

Access SAP transaction `RZ10` (Instance Profile Maintenance) in your SAP system.

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Select the relevant instance profile and choose 'Display' or 'Change'.

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Verify the profile parameter `zcsa/installed_languages`. This parameter dictates the languages installed in the SAP system. Ensure it includes all necessary languages.

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Crucially, check the profile parameter `zcsa/system_language`. This parameter defines the system's primary language and influences character set handling. For S/4HANA, it's often set to 'E' (English) or the primary business language.

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Examine profile parameter `fs/client/encoding`. While less common to directly cause CESU-8 errors, ensure it's set appropriately if it exists and is being used.

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If any changes are made to these profile parameters, save the profile and restart the SAP application servers. This is essential for the changes to take effect.

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After the restart, try the SAP transaction that was failing. If the error persists, it's more likely an issue with the actual data itself (Solution 1).

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3. Apply SAP Notes for Known CESU-8 Encoding Issues medium

Installs relevant SAP Notes that address bugs or inconsistencies related to CESU-8 encoding in S/4HANA.

Access the SAP Support Portal (support.sap.com).

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Navigate to the 'SAP Notes' section and search for notes related to 'CESU-8', 'ERR_API_INVALID_CESU8_STRING', or 'character encoding' in the context of SAP S/4HANA.

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Review the search results for relevant SAP Notes. Pay close attention to the applicability of the notes to your specific SAP S/4HANA version and support package level.

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Download the relevant SAP Notes. If the note is a correction instruction, you can directly implement it using transaction `SNOTE` in your SAP system.

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In your SAP system, execute transaction `SNOTE`.

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Upload the downloaded SAP Note file (if not directly downloaded via SNOTE) or select the note from the downloaded list.

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Follow the on-screen instructions to implement the SAP Note. This may involve manual steps or automatic code adjustments.

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After successful implementation, test the SAP transaction or process that was causing the error.

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