diff --git a/readme.md b/readme.md
index 4f73616..d5658dc 100644
--- a/readme.md
+++ b/readme.md
@@ -54,7 +54,7 @@ However, this name can be overridden using `[assembly: ImmediateAssemblyIdentifi
 ### Customizing the endpoints
 #### AsParameters
 
-By default on POST and PUT requests Immediate.Apis will assume that your request class should be treated as a `[FromBody]`. Sometimes, however, this is not desired. For example imagine a PUT request that sits at a route `/api/todos/{id}` and updates a TODO with a given ID. We would want to get the `id` from the route and the properties to update from the body. To do so, we need to create the following request command class:
+By default on POST, PUT, and PATCH requests Immediate.Apis will assume that your request class should be treated as a `[FromBody]`. Sometimes, however, this is not desired. For example imagine a PUT request that sits at a route `/api/todos/{id}` and updates a TODO with a given ID. We would want to get the `id` from the route and the properties to update from the body. To do so, we need to create the following request command class:
 
 ```cs
 public sealed record Command
diff --git a/src/Immediate.Apis.Analyzers/CustomizeGroupUsageAnalyzer.cs b/src/Immediate.Apis.Analyzers/CustomizeGroupUsageAnalyzer.cs
index eb68c9a..4a8b3a3 100644
--- a/src/Immediate.Apis.Analyzers/CustomizeGroupUsageAnalyzer.cs
+++ b/src/Immediate.Apis.Analyzers/CustomizeGroupUsageAnalyzer.cs
@@ -11,7 +11,7 @@ public sealed class CustomizeGroupUsageAnalyzer : DiagnosticAnalyzer
 		new(
 			id: DiagnosticIds.IAPI0011CustomizeGroupInvalid,
 			title: "`CustomizeGroup` requires a specific definition",
-			messageFormat: "`CustomizeGroup` must be `private static void CustomizeEndpoint(RouteGroupBuilder group)`",
+			messageFormat: "`CustomizeGroup` must be `private static void CustomizeGroup(RouteGroupBuilder group)`",
 			category: "ImmediateApis",
 			defaultSeverity: DiagnosticSeverity.Warning,
 			isEnabledByDefault: true,
diff --git a/src/Immediate.Apis.Analyzers/DiagnosticIds.cs b/src/Immediate.Apis.Analyzers/DiagnosticIds.cs
index d46a936..de837ae 100644
--- a/src/Immediate.Apis.Analyzers/DiagnosticIds.cs
+++ b/src/Immediate.Apis.Analyzers/DiagnosticIds.cs
@@ -11,7 +11,6 @@ internal static class DiagnosticIds
 	public const string IAPI0007MissingTransformResultMethod = "IAPI0007";
 	public const string IAPI0008HandlerShouldNotDependOnEndpoint = "IAPI0008";
 	public const string IAPI0009EndpointHasBeenSpecifiedMultipleTimes = "IAPI0009";
-	public const string IAPI0010InvalidRouteGroupName = "IAPI0010";
 	public const string IAPI0011CustomizeGroupInvalid = "IAPI0011";
 	public const string IAPI0012MissingCustomizeGroupMethod = "IAPI0012";
 	public const string IAPI0013InvalidMapGroupTarget = "IAPI0013";
diff --git a/tests/Immediate.Apis.Tests/Utility.cs b/tests/Immediate.Apis.Tests/Utility.cs
index b26f349..f4ed6f1 100644
--- a/tests/Immediate.Apis.Tests/Utility.cs
+++ b/tests/Immediate.Apis.Tests/Utility.cs
@@ -76,23 +76,6 @@ public static TheoryData<string> Methods() =>
 			"Delete",
 		];
 
-	public static TheoryData<string> ValidRouteGroupNames =>
-		[
-			"_TestGroup",
-			"Test_Group",
-			"Test123Group",
-			"123TestGroup",
-		];
-
-	public static TheoryData<string> InvalidRouteGroupNames =>
-		[
-			"",
-			"Test.Group",
-			"Test Group",
-			"Test@Group",
-			"Test#Group",
-		];
-
 	public static SettingsTask VerifyIgnoreImmediateHandlers(GeneratorDriverRunResult result, [CallerFilePath] string sourceFile = "") =>
 		Verify(result, sourceFile: sourceFile)
 			.IgnoreGeneratedResult(gsr => ImmediateHandlersHintName().IsMatch(Path.GetFileName(gsr.HintName)))