How to fix Error 10783 on Windows Server 2025 / Windows 11

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Troubleshooting Guide: Error 10783 – Natively Compiled Module Must Be an ATOMIC Block

Why This Error Happens

This error occurs when creating or altering a natively compiled stored procedure, trigger, or scalar function in SQL Server 2025 without wrapping the module body in a required BEGIN ATOMIC ... END block. Natively compiled modules, used with memory-optimized tables, mandate atomic block syntax because they compile to native machine code and cannot rely on standard transaction control statements like BEGIN TRAN. This is almost always a T-SQL syntax issue in the module definition rather than a server configuration or permissions problem.

Step-by-Step Resolution Guide

Step 1: Locate the Problematic Module Definition

  • Open SSMS or Azure Data Studio connected to your SQL Server 2025 instance.
  • Run the following to find the object causing the error:
SELECT definition FROM sys.sql_modules 
WHERE object_id = OBJECT_ID('YourProcedureName');
  • Identify whether the module uses WITH NATIVE_COMPILATION in its header.

Step 2: Rewrite the Module Body Using an ATOMIC Block

  • Ensure the body begins with BEGIN ATOMIC instead of a plain BEGIN.
  • Include the required WITH clause specifying TRANSACTION ISOLATION LEVEL and LANGUAGE.
  • Example corrected syntax:
CREATE PROCEDURE dbo.MyNativeProc
WITH NATIVE_COMPILATION, SCHEMABINDING
AS
BEGIN ATOMIC WITH 
(
    TRANSACTION ISOLATION LEVEL = SNAPSHOT,
    LANGUAGE = N'us_english'
)
    -- procedure logic here
END

Step 3: Drop and Recreate the Module

  • Since ALTER is not supported for natively compiled modules in most versions, drop the existing object first:
DROP PROCEDURE IF EXISTS dbo.MyNativeProc;
  • Re-run the corrected CREATE PROCEDURE script from Step 2.

Step 4: Validate Dependent Memory-Optimized Objects

  • Confirm that any tables referenced in the module are memory-optimized (SELECT is_memory_optimized FROM sys.tables).
  • If the table is not memory-optimized, the ATOMIC block requirement still applies for natively compiled modules, so fix syntax rather than table type.

Alternative or Verification Steps

  • Re-execute the CREATE PROCEDURE statement and confirm it completes without Error 10783; then test execution with sample parameters to verify logic integrity.
  • If the error persists, check for nested or hidden BEGIN...END blocks inside the module that might be conflicting with the outer ATOMIC block—only one ATOMIC block is allowed per natively compiled module.