diff --git a/README.md b/README.md
index ac3cabe..260a1b5 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,18 @@ The application requires the following configuration variables to be set:
 
 These variables can be set in your application's configuration file or through environment variables, depending on your deployment strategy.
 
+## NetBox Custom Fields
+
+Ensure that your NetBox instance is configured with the following custom fields:
+
+- `geoloc_city`: (Text) Represents the city and is not required to be filled in.
+- `geoloc_country`: (Selection) Represents the country and is not required to be filled in.
+- `geoloc_has_location`: (Boolean) Indicates if there is geolocation data available and is required.
+- `geoloc_postal_code`: (Text) Represents the postal code and is not required to be filled in.
+- `geoloc_region`: (Selection) Represents the region and is not required to be filled in.
+
+These fields are critical for the application to accurately retrieve and format geolocation data.
+
 ## Getting Started
 
 To build and run the application, follow these steps:
@@ -32,10 +44,6 @@ To build and run the application, follow these steps:
 5. After a successful build, you can start the application by running `dotnet run`.
 6. The application will start, and you can access the endpoints as specified.
 
-## Docker Build
-
-A Dockerfile is provided for your convienence. This has not been tested as of yet.
-
 ## Endpoints
 
 The application provides the following key endpoints: