[#OSSL_CMP_CTX_set1_transactionID]
= OSSL_CMP_CTX_set1_transactionID
:mrdocs:

Set the transactionID placed in outgoing CMP PKIHeader fields.

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL_CMP_CTX_set1_transactionID(
    xref:OSSL_CMP_CTX.adoc[OSSL_CMP_CTX]* ctx,
    xref:ASN1_OCTET_STRING.adoc[ASN1_OCTET_STRING] const* id);
----

== Return Value

1 on success, 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| CMP context.
| *id*
| Transaction ID octet string to copy, or NULL to clear.
|===


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