[#PartiallySignedTransaction-fallback_locktime]
= xref:PartiallySignedTransaction.adoc[PartiallySignedTransaction]::fallback_locktime
:relfileprefix: ../
:mrdocs:

The fallback locktime used when no input requires one (PSBTv2).

== Synopsis

Declared in `<psbt.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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std::optional<uint32_t> fallback_locktime;
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