Windows error 6701 (ERROR_TRANSACTION_NOT

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: A KTM transaction handle was reused after the active unit of work had ended.

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ERROR_INVALID_TRANSACTION	ERROR_TRANSACTION_REQUEST_NOT_VALID

ERROR_TRANSACTION_NOT_ACTIVE

In the Kernel Transaction Manager (KTM), this status points to a lifecycle error: the caller is using a transaction handle after the unit of work is no longer active. It is not a general database or file-system failure. A KTM transaction can be shared by several participants, and commit or rollback processing changes what later calls are valid.

How it differs from nearby KTM statuses

ERROR_TRANSACTION_ALREADY_COMMITTED and ERROR_TRANSACTION_ALREADY_ABORTED identify a known terminal outcome.
ERROR_TRANSACTION_REQUEST_NOT_VALID is broader: it means a request is illegal in the current phase, even when the transaction has not simply been reused after completion.
This status should not be treated as a signal to repeat the same operation on the same handle.

Useful evidence

Record the transaction identifier, the API that failed, the first commit or rollback request, and notifications received by each resource manager. Check whether application code keeps a transaction handle in a cache, callback context, or work item after the transaction has reached its outcome. Start a new transaction for a new unit of work rather than attempting to reactivate the old one.

See the KTM transaction flow and the KTM API reference.

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