[#CZMQNotificationInterface-TransactionRemovedFromMempool]
= xref:CZMQNotificationInterface.adoc[CZMQNotificationInterface]::TransactionRemovedFromMempool
:relfileprefix: ../
:mrdocs:

Handle a transaction being removed from the mempool.

== Synopsis

Declared in `<zmq/zmqnotificationinterface.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
TransactionRemovedFromMempool(
    xref:CTransactionRef.adoc[CTransactionRef] const& tx,
    xref:MemPoolRemovalReason.adoc[MemPoolRemovalReason] reason,
    uint64_t mempool_sequence) override;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tx*
| The removed transaction.
| *reason*
| Why the transaction was removed.
| *mempool_sequence*
| The mempool sequence number of the event.
|===


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