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Description

This error indicates an attempt to save data into SAP S/4HANA where a mandatory field, configured with a 'NOT NULL' constraint in the database, has been left empty or provided with a null value. It typically occurs during data entry, import, or through programmatic interfaces.

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Error Message

ERR_SQL_NOT_NULL_CONSTRAINT

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Known Causes

4 known causes

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Missing Mandatory Input

Users attempting to save a transaction or record without providing data for a field explicitly marked as required by the system.

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Data Integration or Migration Issue

External systems or data migration processes providing incomplete datasets where required fields for SAP S/4HANA records are missing values.

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Custom Development or Configuration Error

Custom applications, reports, or configurations failing to correctly handle or pass data for fields that have a 'NOT NULL' constraint in the underlying database.

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API or Programmatic Submission

An application programming interface (API) call or a custom program attempting to insert or update data without supplying a value for a non-nullable field.

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Solutions

3 solutions available

1. Identify and Correct Data Entry Errors easy

This is the most common cause; review recent data inputs that failed.

1

Analyze the application logs or trace files immediately preceding the error 433. Look for the specific transaction or process that was being executed.

2

Identify the SAP table and the specific field that is causing the null constraint violation. The error message or related logs should provide this information. For example, the error might indicate a violation on table `MARA` for field `MATNR`.

3

If the error occurred during a manual data entry process (e.g., in a transaction code like `MM01` for Material Master), retrain the user or correct the data entry in the specific record. Ensure all mandatory fields are populated.

4

If the error occurred during a batch input or data migration, review the source data file or program. Ensure that all required fields are present and not null for the affected records.

2. Review and Adjust Custom Development medium

Check custom programs, user exits, BAdIs, or enhancements that interact with affected tables.

1

Pinpoint the custom code (e.g., ABAP programs, user exits, BAdIs) that is attempting to insert or update a record in the affected table without a value for a non-nullable field.

2

Use the ABAP debugger to step through the custom code when the error occurs. Examine the values being passed to the database insert/update statements.

START TRANSACTION SE80.
-> Navigate to the relevant ABAP program.
-> Set breakpoints at statements that perform database operations (INSERT, UPDATE).
-> Execute the transaction/process that triggers the error.

3

Modify the custom code to ensure that a valid value is provided for the non-nullable field before executing the database operation. This might involve:
- Retrieving a default value.
- Prompting the user for input.
- Implementing logic to derive the value.

ABAP Example (Conceptual):

DATA: lv_matnr TYPE mara-matnr.

* ... logic to determine lv_matnr ...
IF lv_matnr IS INITIAL.
  MESSAGE 'Material Number cannot be empty.' TYPE 'E'.
ELSE.
  INSERT mara FROM wa_mara.
ENDIF.

4

Test the modified custom code thoroughly in a non-production environment to confirm the issue is resolved and no new problems are introduced.

3. Investigate SAP Standard Behavior and Configuration medium

Verify if standard SAP settings or master data setup are contributing to the issue.

1

For critical fields that are consistently causing null constraint violations, investigate the underlying SAP configuration. For example, if a required field in a business partner (BP) is not being populated, check the BP configuration in SPRO.

2

Review relevant master data. For instance, if the error occurs when creating a sales order, check the configuration of the material master (e.g., material type settings, which define which fields are mandatory) and customer master.

Transaction codes to check:
- OMS2 (Material Type)
- VD02/XD02 (Customer Master)
- BP transaction (Business Partner)

3

If a specific business process is consistently failing, consult SAP Notes related to the error code and the affected transaction/module. SAP often releases fixes or workarounds for such issues.

Use SAP Support Portal (launchpad.support.sap.com) to search for "Error 433" or "ERR_SQL_NOT_NULL_CONSTRAINT" along with the relevant transaction code or module.

4

If standard configuration appears to be missing or incorrect, work with functional consultants to adjust the settings in SPRO. Be cautious when changing standard SAP configuration, and always perform changes in a controlled manner with proper testing.

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Related Errors

5 related errors

SAP S/4HANA Error 433: Null Constraint Violation