diff --git a/frontend/messages/de.json b/frontend/messages/de.json
index 48135368..e3f2b2d1 100644
--- a/frontend/messages/de.json
+++ b/frontend/messages/de.json
@@ -1,6 +1,8 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
 	"error_annotation_not_found": "Die Annotation wurde nicht gefunden.",
+	"error_annotation_update_failed": "Annotation konnte nicht gespeichert werden.",
+	"annotation_edit_mode_active": "Annotation ausgewählt — Ziehpunkte sichtbar.",
 	"annotation_outdated_notice": "Einige Annotationen beziehen sich auf eine frühere Dateiversion und werden nicht angezeigt.",
 	"error_document_not_found": "Das Dokument wurde nicht gefunden.",
 	"error_document_no_file": "Diesem Dokument ist noch keine Datei zugeordnet.",
diff --git a/frontend/messages/en.json b/frontend/messages/en.json
index 8f55b111..e059f9b0 100644
--- a/frontend/messages/en.json
+++ b/frontend/messages/en.json
@@ -1,6 +1,8 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
 	"error_annotation_not_found": "Annotation not found.",
+	"error_annotation_update_failed": "Could not save annotation position.",
+	"annotation_edit_mode_active": "Annotation selected — resize handles visible.",
 	"annotation_outdated_notice": "Some annotations refer to an earlier file version and are not shown.",
 	"error_document_not_found": "Document not found.",
 	"error_document_no_file": "No file is associated with this document.",
diff --git a/frontend/messages/es.json b/frontend/messages/es.json
index b4b0ba65..7fbd8c0c 100644
--- a/frontend/messages/es.json
+++ b/frontend/messages/es.json
@@ -1,6 +1,8 @@
 {
 	"$schema": "https://inlang.com/schema/inlang-message-format",
 	"error_annotation_not_found": "Anotación no encontrada.",
+	"error_annotation_update_failed": "No se pudo guardar la posición de la anotación.",
+	"annotation_edit_mode_active": "Anotación seleccionada — tiradores visibles.",
 	"annotation_outdated_notice": "Algunas anotaciones hacen referencia a una versión anterior del archivo y no se muestran.",
 	"error_document_not_found": "Documento no encontrado.",
 	"error_document_no_file": "No hay ningún archivo asociado a este documento.",
diff --git a/frontend/src/lib/errors.ts b/frontend/src/lib/errors.ts
index da769462..23a76344 100644
--- a/frontend/src/lib/errors.ts
+++ b/frontend/src/lib/errors.ts
@@ -18,6 +18,7 @@ export type ErrorCode =
 	| 'IMPORT_ALREADY_RUNNING'
 	| 'INVALID_RESET_TOKEN'
 	| 'ANNOTATION_NOT_FOUND'
+	| 'ANNOTATION_UPDATE_FAILED'
 	| 'TRANSCRIPTION_BLOCK_NOT_FOUND'
 	| 'TRANSCRIPTION_BLOCK_CONFLICT'
 	| 'COMMENT_NOT_FOUND'
@@ -81,6 +82,8 @@ export function getErrorMessage(code: ErrorCode | string | undefined): string {
 			return m.error_invalid_reset_token();
 		case 'ANNOTATION_NOT_FOUND':
 			return m.error_annotation_not_found();
+		case 'ANNOTATION_UPDATE_FAILED':
+			return m.error_annotation_update_failed();
 		case 'TRANSCRIPTION_BLOCK_NOT_FOUND':
 			return m.error_transcription_block_not_found();
 		case 'TRANSCRIPTION_BLOCK_CONFLICT':