diff --git a/x-pack/plugins/case/server/common/error.ts b/x-pack/plugins/case/server/common/error.ts
index 517aa246aa329..95b05fd612e60 100644
--- a/x-pack/plugins/case/server/common/error.ts
+++ b/x-pack/plugins/case/server/common/error.ts
@@ -52,7 +52,8 @@ export function isCaseError(error: unknown): error is CaseError {
 }
 
 /**
- * Create a CaseError that wraps the original thrown error. This also logs the message that will be placed in the CaseError.
+ * Create a CaseError that wraps the original thrown error. This also logs the message that will be placed in the CaseError
+ * if the logger was defined.
  */
 export function createCaseError({
   message,
@@ -61,11 +62,11 @@ export function createCaseError({
 }: {
   message?: string;
   error?: Error;
-  logger: Logger;
+  logger?: Logger;
 }) {
   const logMessage: string | undefined = message ?? error?.toString();
   if (logMessage !== undefined) {
-    logger.error(logMessage);
+    logger?.error(logMessage);
   }
 
   return new CaseError(message, error);
diff --git a/x-pack/plugins/case/server/connectors/case/index.ts b/x-pack/plugins/case/server/connectors/case/index.ts
index 2502565118182..8d5897517aa89 100644
--- a/x-pack/plugins/case/server/connectors/case/index.ts
+++ b/x-pack/plugins/case/server/connectors/case/index.ts
@@ -153,9 +153,18 @@ interface AttachmentAlerts {
   indices: string[];
   rule: { id: string | null; name: string | null };
 }
+
+/**
+ * Convert a connector style comment passed through the action plugin to the expected format for the add comment functionality.
+ *
+ * @param comment an object defining the comment to be attached to a case/sub case
+ * @param logger an optional logger to handle logging an error if parsing failed
+ *
+ * Note: This is exported so that the integration tests can use it.
+ */
 export const transformConnectorComment = (
   comment: CommentSchemaType,
-  logger: Logger
+  logger?: Logger
 ): CommentRequest => {
   if (isCommentGeneratedAlert(comment)) {
     try {