diff --git a/topics/clients/saml/idp-initiated-login.adoc b/topics/clients/saml/idp-initiated-login.adoc
index 2a813bf216..9e08566ff8 100644
--- a/topics/clients/saml/idp-initiated-login.adoc
+++ b/topics/clients/saml/idp-initiated-login.adoc
@@ -10,3 +10,23 @@ If your client requires a special relay state, you can also configure this on th
 Alternatively, browsers can specify the relay state in a `RelayState` query parameter, i.e.
 `root/auth/realms/{realm}/protocol/saml/clients/{url-name}?RelayState=thestate`.
 
+When using <<_identity_broker,identity brokering>>, it is possible to set up an IDP Initiated Login for a client from an
+external IDP. The actual client is set up for IDP Initiated Login at broker IDP as described above. The external IDP has
+to set up the client for application IDP Initiated Login that will point to a special URL pointing to the broker and
+representing IDP Initiated Login endpoint for a selected client at the brokering IDP. This means that in client settings
+at the external IDP:
+
+* `IDP Initiated SSO URL Name` is set to a name that will be published as IDP Initiated Login initial point,
+* `Assertion Consumer Service POST Binding URL` in the `Fine Grain SAML Endpoint Configuration` section has
+  to be set to the following URL:
+  `broker-root/auth/realms/{broker-realm}/broker/{idp-name}/endpoint/clients/{client-id}`, where:
+
+    ** _broker-root_ is base broker URL
+    ** _broker-realm_ is name of the realm at broker where external IDP is declared
+    ** _idp-name_ is name of the external IDP at broker
+    ** _client-id_ is the value of `IDP Initiated SSO URL Name` attribute of the SAML client defined at broker. It is
+       this client, which will be made available for IDP Initiated Login from the external IDP.
+
+Please note that you can import basic client settings from the brokering IDP into client settings of the external IDP -
+just use <<_identity_broker_saml_sp_descriptor,SP Descriptor>> available from the settings of the identity provider in
+the brokering IDP, and add `clients/_client-id_` to the endpoint URL.
diff --git a/topics/identity-broker/saml.adoc b/topics/identity-broker/saml.adoc
index 94a30088a1..360b4eb03f 100644
--- a/topics/identity-broker/saml.adoc
+++ b/topics/identity-broker/saml.adoc
@@ -60,6 +60,7 @@ This link is an XML document describing metadata about the IDP.
 
 You can also import all this configuration data by providing a URL or XML file that points to the entity descriptor of the external SAML IDP you want to connect to.
 
+[[_identity_broker_saml_sp_descriptor]]
 ==== SP Descriptor
 
 Once you create a SAML provider, there is an `EXPORT` button that appears when viewing that provider.