Making access to reusable workflows clearer (#33134)

Co-authored-by: hubwriter <hubwriter@github.com>

content/actions/using-workflows/reusing-workflows.md

@@ -59,6 +59,18 @@ A reusable workflow can be used by another workflow if any of the following is t
 - The called workflow is stored in a private repository and the settings for that repository allow it to be accessed. For more information, see {% ifversion ghes or ghec %}"[AUTOTITLE](/actions/creating-actions/sharing-actions-and-workflows-with-your-enterprise)."{% else %}"[AUTOTITLE](/actions/creating-actions/sharing-actions-and-workflows-with-your-organization)" and "[AUTOTITLE](/actions/creating-actions/sharing-actions-and-workflows-from-your-private-repository)."{% endif %}
 {% endif %}
 
+The following table shows the accessibility of reusable workflows to a caller workflow, depending on the visibility of the host repository.
+
+| Caller repository | Accessible workflows repositories |
+|----|----|
+| `private` | `private`{% ifversion ghes or ghec %}, `internal`,{% endif %} and  `public` |{% ifversion ghes or ghec %}
+| `internal` | `internal`, and `public` |{% endif %}
+| `public` | `public` |
+
+The **Actions permissions** on the callers repository's Actions settings page must be configured to allow the use of actions and reusable workflows - see "[AUTOTITLE](/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-github-actions-settings-for-a-repository#allowing-select-actions-and-reusable-workflows-to-run)."
+
+For {% ifversion ghes or ghec %}internal or {% endif %}private repositories, the **Access** policy on the Actions settings page of the called workflow's repository must be explicitly configured to allow access from repositories containing caller workflows - see "[AUTOTITLE](/repositories/managing-your-repositorys-settings-and-features/enabling-features-for-your-repository/managing-github-actions-settings-for-a-repository#allowing-access-to-components-in-a-private-repository)."
+
 {% data reusables.actions.actions-redirects-workflows %}
 
 ## Using runners