+#. TRANS: Server exception thrown if a Yammer authentication request is already present.
+msgid "Cannot request Yammer auth; already there!"
+msgstr ""
+
+#. TRANS: Server exception thrown when requesting a Yammer authentication URL while in an incorrect state.
+msgid "Cannot get Yammer auth URL when not in requesting-auth state!"
+msgstr ""
+
+#. TRANS: Exeption thrown when an external Yammer system gives an error.
+#. TRANS: %1$s is an HTTP error code, %2$s is the error message body.
+#, php-format
+msgid "Yammer API returned HTTP code %1$s: %2$s"
+msgstr ""
+
+#. TRANS: Exeption thrown when an external Yammer system an invalid JSON response.
+msgid "Invalid JSON response from Yammer API."
+msgstr ""
+
+#. TRANS: Exeption thrown when a trust relationship has already been established.
+msgid "Requesting a token, but already set up with a token."
+msgstr ""
+
+#. TRANS: Field label for a Yammer import initialise step.