diff --git a/pkg/internal/oas_client_gen.go b/pkg/internal/oas_client_gen.go
index 78d4f40..c6fce31 100644
--- a/pkg/internal/oas_client_gen.go
+++ b/pkg/internal/oas_client_gen.go
@@ -269,15 +269,15 @@ func (c *Client) sendActionMapfixAccepted(ctx context.Context, params ActionMapf
 	stage = "EncodeQueryParams"
 	q := uri.NewQueryEncoder()
 	{
-		// Encode "StatusMessage" parameter.
+		// Encode "ErrorMessage" parameter.
 		cfg := uri.QueryParameterEncodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
 
 		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
-			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+			return e.EncodeValue(conv.StringToString(params.ErrorMessage))
 		}); err != nil {
 			return res, errors.Wrap(err, "encode query")
 		}
@@ -378,15 +378,15 @@ func (c *Client) sendActionMapfixRequestChanges(ctx context.Context, params Acti
 	stage = "EncodeQueryParams"
 	q := uri.NewQueryEncoder()
 	{
-		// Encode "StatusMessage" parameter.
+		// Encode "ErrorMessage" parameter.
 		cfg := uri.QueryParameterEncodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
 
 		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
-			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+			return e.EncodeValue(conv.StringToString(params.ErrorMessage))
 		}); err != nil {
 			return res, errors.Wrap(err, "encode query")
 		}
@@ -887,15 +887,15 @@ func (c *Client) sendActionSubmissionAccepted(ctx context.Context, params Action
 	stage = "EncodeQueryParams"
 	q := uri.NewQueryEncoder()
 	{
-		// Encode "StatusMessage" parameter.
+		// Encode "ErrorMessage" parameter.
 		cfg := uri.QueryParameterEncodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
 
 		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
-			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+			return e.EncodeValue(conv.StringToString(params.ErrorMessage))
 		}); err != nil {
 			return res, errors.Wrap(err, "encode query")
 		}
@@ -996,15 +996,15 @@ func (c *Client) sendActionSubmissionRequestChanges(ctx context.Context, params
 	stage = "EncodeQueryParams"
 	q := uri.NewQueryEncoder()
 	{
-		// Encode "StatusMessage" parameter.
+		// Encode "ErrorMessage" parameter.
 		cfg := uri.QueryParameterEncodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
 
 		if err := q.EncodeParam(cfg, func(e uri.Encoder) error {
-			return e.EncodeValue(conv.StringToString(params.StatusMessage))
+			return e.EncodeValue(conv.StringToString(params.ErrorMessage))
 		}); err != nil {
 			return res, errors.Wrap(err, "encode query")
 		}
diff --git a/pkg/internal/oas_handlers_gen.go b/pkg/internal/oas_handlers_gen.go
index ff02638..e8fe7a4 100644
--- a/pkg/internal/oas_handlers_gen.go
+++ b/pkg/internal/oas_handlers_gen.go
@@ -129,9 +129,9 @@ func (s *Server) handleActionMapfixAcceptedRequest(args [1]string, argsEscaped b
 					In:   "path",
 				}: params.MapfixID,
 				{
-					Name: "StatusMessage",
+					Name: "ErrorMessage",
 					In:   "query",
-				}: params.StatusMessage,
+				}: params.ErrorMessage,
 			},
 			Raw: r,
 		}
@@ -282,9 +282,9 @@ func (s *Server) handleActionMapfixRequestChangesRequest(args [1]string, argsEsc
 					In:   "path",
 				}: params.MapfixID,
 				{
-					Name: "StatusMessage",
+					Name: "ErrorMessage",
 					In:   "query",
-				}: params.StatusMessage,
+				}: params.ErrorMessage,
 			},
 			Raw: r,
 		}
@@ -1039,9 +1039,9 @@ func (s *Server) handleActionSubmissionAcceptedRequest(args [1]string, argsEscap
 					In:   "path",
 				}: params.SubmissionID,
 				{
-					Name: "StatusMessage",
+					Name: "ErrorMessage",
 					In:   "query",
-				}: params.StatusMessage,
+				}: params.ErrorMessage,
 			},
 			Raw: r,
 		}
@@ -1192,9 +1192,9 @@ func (s *Server) handleActionSubmissionRequestChangesRequest(args [1]string, arg
 					In:   "path",
 				}: params.SubmissionID,
 				{
-					Name: "StatusMessage",
+					Name: "ErrorMessage",
 					In:   "query",
-				}: params.StatusMessage,
+				}: params.ErrorMessage,
 			},
 			Raw: r,
 		}
diff --git a/pkg/internal/oas_parameters_gen.go b/pkg/internal/oas_parameters_gen.go
index d21e5e5..558c0ea 100644
--- a/pkg/internal/oas_parameters_gen.go
+++ b/pkg/internal/oas_parameters_gen.go
@@ -18,8 +18,8 @@ import (
 // ActionMapfixAcceptedParams is parameters of actionMapfixAccepted operation.
 type ActionMapfixAcceptedParams struct {
 	// The unique identifier for a submission.
-	MapfixID      int64
-	StatusMessage string
+	MapfixID     int64
+	ErrorMessage string
 }
 
 func unpackActionMapfixAcceptedParams(packed middleware.Parameters) (params ActionMapfixAcceptedParams) {
@@ -32,10 +32,10 @@ func unpackActionMapfixAcceptedParams(packed middleware.Parameters) (params Acti
 	}
 	{
 		key := middleware.ParameterKey{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 		}
-		params.StatusMessage = packed[key].(string)
+		params.ErrorMessage = packed[key].(string)
 	}
 	return params
 }
@@ -104,10 +104,10 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 			Err:  err,
 		}
 	}
-	// Decode query: StatusMessage.
+	// Decode query: ErrorMessage.
 	if err := func() error {
 		cfg := uri.QueryParameterDecodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
@@ -124,7 +124,7 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 					return err
 				}
 
-				params.StatusMessage = c
+				params.ErrorMessage = c
 				return nil
 			}); err != nil {
 				return err
@@ -138,7 +138,7 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 					Email:        false,
 					Hostname:     false,
 					Regex:        nil,
-				}).Validate(string(params.StatusMessage)); err != nil {
+				}).Validate(string(params.ErrorMessage)); err != nil {
 					return errors.Wrap(err, "string")
 				}
 				return nil
@@ -151,7 +151,7 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 		return nil
 	}(); err != nil {
 		return params, &ogenerrors.DecodeParamError{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 			Err:  err,
 		}
@@ -162,8 +162,8 @@ func decodeActionMapfixAcceptedParams(args [1]string, argsEscaped bool, r *http.
 // ActionMapfixRequestChangesParams is parameters of actionMapfixRequestChanges operation.
 type ActionMapfixRequestChangesParams struct {
 	// The unique identifier for a submission.
-	MapfixID      int64
-	StatusMessage string
+	MapfixID     int64
+	ErrorMessage string
 }
 
 func unpackActionMapfixRequestChangesParams(packed middleware.Parameters) (params ActionMapfixRequestChangesParams) {
@@ -176,10 +176,10 @@ func unpackActionMapfixRequestChangesParams(packed middleware.Parameters) (param
 	}
 	{
 		key := middleware.ParameterKey{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 		}
-		params.StatusMessage = packed[key].(string)
+		params.ErrorMessage = packed[key].(string)
 	}
 	return params
 }
@@ -248,10 +248,10 @@ func decodeActionMapfixRequestChangesParams(args [1]string, argsEscaped bool, r
 			Err:  err,
 		}
 	}
-	// Decode query: StatusMessage.
+	// Decode query: ErrorMessage.
 	if err := func() error {
 		cfg := uri.QueryParameterDecodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
@@ -268,7 +268,7 @@ func decodeActionMapfixRequestChangesParams(args [1]string, argsEscaped bool, r
 					return err
 				}
 
-				params.StatusMessage = c
+				params.ErrorMessage = c
 				return nil
 			}); err != nil {
 				return err
@@ -282,7 +282,7 @@ func decodeActionMapfixRequestChangesParams(args [1]string, argsEscaped bool, r
 					Email:        false,
 					Hostname:     false,
 					Regex:        nil,
-				}).Validate(string(params.StatusMessage)); err != nil {
+				}).Validate(string(params.ErrorMessage)); err != nil {
 					return errors.Wrap(err, "string")
 				}
 				return nil
@@ -295,7 +295,7 @@ func decodeActionMapfixRequestChangesParams(args [1]string, argsEscaped bool, r
 		return nil
 	}(); err != nil {
 		return params, &ogenerrors.DecodeParamError{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 			Err:  err,
 		}
@@ -761,8 +761,8 @@ func decodeActionOperationFailedParams(args [1]string, argsEscaped bool, r *http
 // ActionSubmissionAcceptedParams is parameters of actionSubmissionAccepted operation.
 type ActionSubmissionAcceptedParams struct {
 	// The unique identifier for a submission.
-	SubmissionID  int64
-	StatusMessage string
+	SubmissionID int64
+	ErrorMessage string
 }
 
 func unpackActionSubmissionAcceptedParams(packed middleware.Parameters) (params ActionSubmissionAcceptedParams) {
@@ -775,10 +775,10 @@ func unpackActionSubmissionAcceptedParams(packed middleware.Parameters) (params
 	}
 	{
 		key := middleware.ParameterKey{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 		}
-		params.StatusMessage = packed[key].(string)
+		params.ErrorMessage = packed[key].(string)
 	}
 	return params
 }
@@ -847,10 +847,10 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 			Err:  err,
 		}
 	}
-	// Decode query: StatusMessage.
+	// Decode query: ErrorMessage.
 	if err := func() error {
 		cfg := uri.QueryParameterDecodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
@@ -867,7 +867,7 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 					return err
 				}
 
-				params.StatusMessage = c
+				params.ErrorMessage = c
 				return nil
 			}); err != nil {
 				return err
@@ -881,7 +881,7 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 					Email:        false,
 					Hostname:     false,
 					Regex:        nil,
-				}).Validate(string(params.StatusMessage)); err != nil {
+				}).Validate(string(params.ErrorMessage)); err != nil {
 					return errors.Wrap(err, "string")
 				}
 				return nil
@@ -894,7 +894,7 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 		return nil
 	}(); err != nil {
 		return params, &ogenerrors.DecodeParamError{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 			Err:  err,
 		}
@@ -905,8 +905,8 @@ func decodeActionSubmissionAcceptedParams(args [1]string, argsEscaped bool, r *h
 // ActionSubmissionRequestChangesParams is parameters of actionSubmissionRequestChanges operation.
 type ActionSubmissionRequestChangesParams struct {
 	// The unique identifier for a submission.
-	SubmissionID  int64
-	StatusMessage string
+	SubmissionID int64
+	ErrorMessage string
 }
 
 func unpackActionSubmissionRequestChangesParams(packed middleware.Parameters) (params ActionSubmissionRequestChangesParams) {
@@ -919,10 +919,10 @@ func unpackActionSubmissionRequestChangesParams(packed middleware.Parameters) (p
 	}
 	{
 		key := middleware.ParameterKey{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 		}
-		params.StatusMessage = packed[key].(string)
+		params.ErrorMessage = packed[key].(string)
 	}
 	return params
 }
@@ -991,10 +991,10 @@ func decodeActionSubmissionRequestChangesParams(args [1]string, argsEscaped bool
 			Err:  err,
 		}
 	}
-	// Decode query: StatusMessage.
+	// Decode query: ErrorMessage.
 	if err := func() error {
 		cfg := uri.QueryParameterDecodingConfig{
-			Name:    "StatusMessage",
+			Name:    "ErrorMessage",
 			Style:   uri.QueryStyleForm,
 			Explode: true,
 		}
@@ -1011,7 +1011,7 @@ func decodeActionSubmissionRequestChangesParams(args [1]string, argsEscaped bool
 					return err
 				}
 
-				params.StatusMessage = c
+				params.ErrorMessage = c
 				return nil
 			}); err != nil {
 				return err
@@ -1025,7 +1025,7 @@ func decodeActionSubmissionRequestChangesParams(args [1]string, argsEscaped bool
 					Email:        false,
 					Hostname:     false,
 					Regex:        nil,
-				}).Validate(string(params.StatusMessage)); err != nil {
+				}).Validate(string(params.ErrorMessage)); err != nil {
 					return errors.Wrap(err, "string")
 				}
 				return nil
@@ -1038,7 +1038,7 @@ func decodeActionSubmissionRequestChangesParams(args [1]string, argsEscaped bool
 		return nil
 	}(); err != nil {
 		return params, &ogenerrors.DecodeParamError{
-			Name: "StatusMessage",
+			Name: "ErrorMessage",
 			In:   "query",
 			Err:  err,
 		}