[#OSSL_CMP_MSG_update_transactionID]
= OSSL_CMP_MSG_update_transactionID
:mrdocs:

Copy the context transactionID into a CMP message header.

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL_CMP_MSG_update_transactionID(
    xref:OSSL_CMP_CTX.adoc[OSSL_CMP_CTX]* ctx,
    xref:OSSL_CMP_MSG.adoc[OSSL_CMP_MSG]* msg);
----

== Return Value

1 on success, 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| CMP context supplying the transactionID.
| *msg*
| Outgoing CMP message whose header is updated.
|===


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