diff --git a/doc/UsersGuide/source/CustomizingTheWorkflow/ConfigWorkflow.rst b/doc/UsersGuide/source/CustomizingTheWorkflow/ConfigWorkflow.rst
index 609caf23f..7a17dd171 100644
--- a/doc/UsersGuide/source/CustomizingTheWorkflow/ConfigWorkflow.rst
+++ b/doc/UsersGuide/source/CustomizingTheWorkflow/ConfigWorkflow.rst
@@ -296,7 +296,7 @@ WORKFLOW Configuration Parameters
 
 If non-default parameters are selected for the variables in this section, they should be added to the ``workflow:`` section of the ``config.yaml`` file. 
 
-``WORKFLOW_ID``: (Default: ``!nowtimestamp ''``)
+``WORKFLOW_ID``: (Default: "")
    Unique ID for the workflow run that will be set in ``setup.py``.
 
 ``RELATIVE_LINK_FLAG``: (Default: "--relative")
@@ -470,8 +470,8 @@ This section contains files and paths to files that are staged in the experiment
 ``WFLOW_XML_FN``: (Default: "FV3LAM_wflow.xml")
    Name of the Rocoto workflow XML file that the experiment generation script creates. This file defines the workflow for the experiment.
 
-``GLOBAL_VAR_DEFNS_FN``: (Default: "var_defns.sh")
-   Name of the file (a shell script) containing definitions of the primary and secondary experiment variables (parameters). This file is sourced by many scripts (e.g., the J-job scripts corresponding to each workflow task) in order to make all the experiment variables available in those scripts. The primary variables are defined in the default configuration file (``config_defaults.yaml``) and in the user configuration file (``config.yaml``). The secondary experiment variables are generated by the experiment generation script. 
+``GLOBAL_VAR_DEFNS_FN``: (Default: "var_defns.yaml")
+   Name of the experiment configuration file. It contains the primary experiment variables defined in this default configuration script and in the user-specified configuration as well as secondary experiment variables generated by the experiment generation script. This file is the primary source of information used in the scripts at run time. The primary variables are defined in the default configuration file (``config_defaults.yaml``) and in the user configuration file (``config.yaml``). The secondary experiment variables are generated by the experiment generation script. 
 
 ``ROCOTO_YAML_FN``: (Default: "rocoto_defns.yaml")
    Name of the YAML file containing the YAML workflow definition from which the Rocoto XML file is created.