diff --git a/modules/Visualization/Visualization.R b/modules/Visualization/Visualization.R
index 7df72086c6338f30e4e7431dde8c9c70c2c066c4..1f6e836de798a6aff8c5459566fa132af516eddd 100644
--- a/modules/Visualization/Visualization.R
+++ b/modules/Visualization/Visualization.R
@@ -26,21 +26,36 @@ Visualization <- function(recipe,
   # s2dv_cube objects
   # skill_metrics: list of arrays containing the computed skill metrics
   # significance: Bool. Whether to include significance dots where applicable
+
+  # Try to set default configuration if not specified by user
   if (is.null(output_conf) && !is.null(recipe$Analysis$Region$name)) {
     output_conf <- read_yaml("modules/Visualization/output_size.yml",
                              eval.exp = TRUE)$region
-    output_conf <- output_conf[[recipe$Analysis$Region$name]]
-    if (is.null(output_conf)) {
-      stop("Region not found in the ouput_conf file") # warning?
+    if (recipe$Analysis$Region$name %in% names(output_conf)) {
+      output_conf <- output_conf[[recipe$Analysis$Region$name]]
+    } else {
+      warn(recipe$Run$logger,
+           paste0("The region name is not found in the 'output_conf' file. ",
+                  "The default plot settings will be used."))
+      output_conf <- NULL
     }
-  } else{
+  # If the user chooses to specify the configuration, warn them.
+  } else {
     if (is.list(output_conf)) {
-      warning("Shape of the list of configuration?")
+      warning(paste0("Parameter 'output_conf' should be a list matching the ",
+                     "parameters of the requested plotting function, i.e. ",
+                     "PlotEquiMap, PlotRobinson or PlotLayout. There could be ",
+                     "plotting erros if the list is incomplete."))
+    } else {
+      warning(paste("Parameter 'output_conf' should be a list.",
+                    "Using default configuration."))
+      output_conf <- NULL
     }
   }
+
+  # Get plot types and create output directories
   plots <- strsplit(recipe$Analysis$Workflow$Visualization$plots, ", | |,")[[1]]
   recipe$Run$output_dir <- paste0(recipe$Run$output_dir, "/plots/")
-  ## TODO: Sort this out
   outdir <- get_dir(recipe = recipe,
                     variable = data$hcst$attrs$Variable$varName)
   for (directory in outdir) {