diff --git a/src/configuration/config_parser.rs b/src/configuration/config_parser.rs
index 0edecd9..9df13c2 100644
--- a/src/configuration/config_parser.rs
+++ b/src/configuration/config_parser.rs
@@ -27,7 +27,24 @@ pub struct ConfigData {
 }
 
 /// Set up configuration
-pub fn set_up_configuration() -> Result<ConfigData, String> {
+///
+/// This function reads the configuration file located at `~/.nbs-config.toml`. If no file can be found, a warning is
+/// displayed to the user and a default config file is written.
+/// If command line arguments are given, the parameters read from the file will be overwritten.
+///
+/// # Returns
+///
+/// * `Ok(ConfigData)` - A `ConfigData` object containing the netbox URI and API token.
+/// * `Err` - Prints an Error if the file cannot be validated.
+///
+/// # Panics
+///
+/// The function panics under these condition:
+///
+/// * If the initialization of the config file raises an error.
+/// * When using a default (empty) configuration file and not providing all required CLI arguments.
+/// * If the configuration file cannot be read.
+pub fn set_up_configuration(uri: String, token: String) -> Result<ConfigData, String> {
     let conf_data: ConfigData;
 
     println!("Checking for existing configuration file...");
@@ -53,6 +70,13 @@ pub fn set_up_configuration() -> Result<ConfigData, String> {
                 panic!("FATAL: An error occurred while initializing the config!")
             }
         }
+
+        if uri.is_empty() || token.is_empty() {
+            panic!(
+                "FATAL: No configuration parameters found in CLI while using an empty config file!\n
+                Please enter valid configuration parameters in the configuration file or provide them via the CLI."
+            )
+        }
     }
 
     conf_data = ConfigData::read_config_file();
diff --git a/src/main.rs b/src/main.rs
index fe71ccd..4fb4a01 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,7 +5,6 @@ use clap::Parser;
 use collectors::{dmi_collector, network_collector};
 use configuration::config_parser::set_up_configuration;
 
-
 /// The arguments that netbox-sync expects to get via the cli.
 ///
 /// Arguments can be passed like this:
@@ -37,7 +36,6 @@ fn main() {
 
     println!("Uri: {}\nToken: {}", args.uri, args.token);
 
-
     let output: dmi_collector::DmiInformation = dmi_collector::construct_dmi_information();
     println!("{:#?}", output);
 
@@ -45,7 +43,7 @@ fn main() {
 
     println!("{:#?}", output2);
 
-    let config = match set_up_configuration() {
+    let config = match set_up_configuration(args.uri, args.token) {
         Ok(conf) => conf,
         Err(err) => {
             panic!("{}", err)