Error Code Portal
MicrosoftWindows Win32Error code

6729

ERROR_TRANSACTION_MUST_WRITETHROUGH

Alternative forms: 0x00001A49 · 0x1A49 · ERROR_TRANSACTION_MUST_WRITETHROUGH · 0x80071A49

What does this code mean?

Code 6729 · An issue reported by Windows Win32.

Official explanation · Original text

The transaction cannot be enlisted on with the specified EnlistmentMask, because the transaction has already completed the PrePrepare phase. In order to ensure correctness, the ResourceManager must switch to a write- through mode and cease caching data within this transaction. Enlisting for only subsequent transaction phases may still succeed.

Troubleshooting and diagnostic links

First check that the document's product, version, and environment match your situation.

Source and terms of use

System Error Codes (6000-8199) (WinError.h) ↗

Creator: Microsoft and MicrosoftDocs contributors
License: Creative Commons Attribution 4.0 International
Checked on: 2026-11-12

Modifications: Extracted numeric codes, symbolic names and English message text; converted Markdown/HTML to plain text and normalized whitespace; added Korean product context, namespace labels, status classification and separately labeled official links. No machine translation of message text.

Source details · Original licenses and notices