diff --git a/lib/Utils/CommonUtils.js b/lib/Utils/CommonUtils.js
index 519e0835..2f3c12d7 100644
--- a/lib/Utils/CommonUtils.js
+++ b/lib/Utils/CommonUtils.js
@@ -79,6 +79,7 @@ exports.getDefaultTestRunName = getDefaultTestRunName;
 exports.getDefaultRunDescription = getDefaultRunDescription;
 exports.validateTestRunParamsFromPipeline = validateTestRunParamsFromPipeline;
 exports.getAllFileErrors = getAllFileErrors;
+exports.sanitisePipelineNameHeader = sanitisePipelineNameHeader;
 const { v4: uuidv4 } = require('uuid');
 const util_1 = require("util");
 const GeneralConstants_1 = require("../Constants/GeneralConstants");
@@ -484,3 +485,26 @@ function getAllFileErrors(testObj) {
     }
     return fileErrors;
 }
+/**
+ * This function returns the string with only ascii charaters, removing the non-ascii characters.
+ * @param pipelineName - original pipeline name
+ * @returns sanitised pipeline name with only ascii characters
+ */
+function sanitisePipelineNameHeader(pipelineName) {
+    if (!pipelineName) {
+        return pipelineName;
+    }
+    let result = "";
+    for (const ch of pipelineName) {
+        const code = ch.codePointAt(0);
+        const allowed = (code >= 32 && code <= 126); // ASCII characters range, the only allowed characters in headers.
+        if (allowed) {
+            result += ch;
+        }
+    }
+    result = result.trim();
+    if (result.length == 0) {
+        result = "-"; // this is what GH does when i try to give all non-ascii characters in the repo name.
+    }
+    return result;
+}
diff --git a/lib/Utils/FetchUtils.js b/lib/Utils/FetchUtils.js
index afdc125b..eef22847 100644
--- a/lib/Utils/FetchUtils.js
+++ b/lib/Utils/FetchUtils.js
@@ -82,7 +82,7 @@ function httpClientRetries(urlSuffix_1, header_1, method_1) {
                 const runId = process.env.GITHUB_RUN_ID;
                 const pipelineName = process.env.GITHUB_WORKFLOW || "Unknown Pipeline";
                 const pipelineUri = `${githubBaseUrl}/${repository}/actions/runs/${runId}`;
-                header['x-ms-pipeline-name'] = pipelineName; // setting these for patch calls.
+                header['x-ms-pipeline-name'] = (0, CommonUtils_1.sanitisePipelineNameHeader)(pipelineName); // setting these for patch calls.
                 header['x-ms-pipeline-uri'] = pipelineUri;
                 httpResponse = yield httpClient.request(methodEnumToString[method], urlSuffix, data, header);
             }
diff --git a/src/Utils/CommonUtils.ts b/src/Utils/CommonUtils.ts
index 377d0076..68f2d5eb 100644
--- a/src/Utils/CommonUtils.ts
+++ b/src/Utils/CommonUtils.ts
@@ -444,3 +444,27 @@ export function getAllFileErrors(testObj:TestModel | null): { [key: string]: str
 
     return fileErrors;
 }
+
+/**
+ * This function returns the string with only ascii charaters, removing the non-ascii characters.
+ * @param pipelineName - original pipeline name
+ * @returns sanitised pipeline name with only ascii characters
+ */
+export function sanitisePipelineNameHeader(pipelineName: string | null): string | null {
+    if(!pipelineName) {
+        return pipelineName;
+    }
+    let result = "";
+    for (const ch of pipelineName) {
+        const code = ch.codePointAt(0)!;
+        const allowed = (code >= 32 && code <= 126); // ASCII characters range, the only allowed characters in headers.
+        if(allowed) {
+            result += ch;
+        }
+    }
+    result = result.trim();
+    if(result.length == 0) {
+        result = "-"; // this is what GH does when i try to give all non-ascii characters in the repo name.
+    }
+    return result;
+}
\ No newline at end of file
diff --git a/src/Utils/FetchUtils.ts b/src/Utils/FetchUtils.ts
index 373427f3..9342b63c 100644
--- a/src/Utils/FetchUtils.ts
+++ b/src/Utils/FetchUtils.ts
@@ -1,5 +1,5 @@
 import { IHeaders, IHttpClientResponse } from 'typed-rest-client/Interfaces';
-import { errorCorrection, getResultObj, getUniqueId, sleep } from './CommonUtils';
+import { errorCorrection, getResultObj, getUniqueId, sanitisePipelineNameHeader, sleep } from './CommonUtils';
 import { FetchCallType, correlationHeader } from './../models/UtilModels';
 import * as httpc from 'typed-rest-client/HttpClient';
 import { uploadFileData } from './FileUtils';
@@ -37,7 +37,7 @@ export async function httpClientRetries(urlSuffix : string, header : IHeaders, m
             const pipelineName = process.env.GITHUB_WORKFLOW || "Unknown Pipeline";
             const pipelineUri = `${githubBaseUrl}/${repository}/actions/runs/${runId}`;
             
-            header['x-ms-pipeline-name'] = pipelineName;   // setting these for patch calls.
+            header['x-ms-pipeline-name'] = sanitisePipelineNameHeader(pipelineName);   // setting these for patch calls.
             header['x-ms-pipeline-uri'] = pipelineUri;
             httpResponse = await httpClient.request(methodEnumToString[method], urlSuffix, data, header);
         }
diff --git a/test/CommonUtils.test.ts b/test/CommonUtils.test.ts
new file mode 100644
index 00000000..e9f7bde2
--- /dev/null
+++ b/test/CommonUtils.test.ts
@@ -0,0 +1,48 @@
+import { sanitisePipelineNameHeader } from "../src/Utils/CommonUtils";
+describe("CommonUtils tests", () => {
+    it.each([
+        {
+            input: "Pipeline@2025#Release$!",
+            expected: "Pipeline@2025#Release$!"
+        },
+        {
+            input: "Build_Definition-01 (Test)  ",
+            expected: "Build_Definition-01 (Test)"
+        },
+        {
+            input: "Normal Name",
+            expected: "Normal Name"
+        },
+        {
+            input: "Special*&^%$#@!Characters",
+            expected: "Special*&^%$#@!Characters"
+        },
+        {
+            input: "",
+            expected: ""
+        },
+        {
+            input: "     ",
+            expected: "-"
+        },
+        {
+            input: "Name_with_underscores_and-dashes",
+            expected: "Name_with_underscores_and-dashes"
+        },
+        {
+            input: null,
+            expected: null
+        },
+        {
+            input: "🚀 Deploy",
+            expected: "Deploy"
+        },
+        {
+            input: "流水线-test-𰻞",
+            expected: "-test-"
+        }
+    ])("sanitisePipelineNameHeader removes special characters", ({ input, expected }) => {
+        const result = sanitisePipelineNameHeader(input);
+        expect(result).toBe(expected);
+    });
+});
\ No newline at end of file