diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index 0e8d26a4c8..267c611bb9 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -1,5 +1,7 @@
 ## RELEASE NOTES
 
+### Version 7.0.55
+**EXUI-1775** Refdata intend to change
 
 ### Version 7.0.54
 **EXUI-2085** Add Task completion logs in app insight
diff --git a/package.json b/package.json
index 0c2607df59..b7e6d37f75 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hmcts/ccd-case-ui-toolkit",
-  "version": "7.0.54",
+  "version": "7.0.55",
   "engines": {
     "node": ">=18.19.0"
   },
diff --git a/projects/ccd-case-ui-toolkit/package.json b/projects/ccd-case-ui-toolkit/package.json
index c184944956..3f2f4dc6e1 100644
--- a/projects/ccd-case-ui-toolkit/package.json
+++ b/projects/ccd-case-ui-toolkit/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hmcts/ccd-case-ui-toolkit",
-  "version": "7.0.54",
+  "version": "7.0.55",
   "engines": {
     "node": ">=18.19.0"
   },
diff --git a/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.spec.ts b/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.spec.ts
index 37585522d9..f5024ce2ab 100644
--- a/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.spec.ts
+++ b/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.spec.ts
@@ -96,7 +96,7 @@ describe('Case Flag Refdata Service', () => {
       next: flagTypes => expect(flagTypes).toEqual(dummyFlagsData.flags[0].FlagDetails)
     });
 
-    const req = httpMock.expectOne(caseFlagsRefdataApiUrl.replace(':sid', 'BBA3'));
+    const req = httpMock.expectOne(caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')+'?available-external-flag=N');
     expect(req.request.method).toEqual('GET');
     req.flush(dummyFlagsData);
   });
@@ -106,7 +106,7 @@ describe('Case Flag Refdata Service', () => {
       next: flagTypes => expect(flagTypes).toEqual(dummyFlagsData.flags[0].FlagDetails)
     });
 
-    const req = httpMock.expectOne(`${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?flag-type=${RefdataCaseFlagType.PARTY}`);
+    const req = httpMock.expectOne(`${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?flag-type=${RefdataCaseFlagType.PARTY}&available-external-flag=N`);
     expect(req.request.method).toEqual('GET');
     req.flush(dummyFlagsData);
   });
@@ -117,7 +117,7 @@ describe('Case Flag Refdata Service', () => {
     });
 
     const req = httpMock.expectOne(
-      `${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?flag-type=${RefdataCaseFlagType.PARTY}&welsh-required=Y`);
+      `${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?flag-type=${RefdataCaseFlagType.PARTY}&welsh-required=Y&available-external-flag=N`);
     expect(req.request.method).toEqual('GET');
     req.flush(dummyFlagsData);
   });
@@ -127,7 +127,7 @@ describe('Case Flag Refdata Service', () => {
       next: flagTypes => expect(flagTypes).toEqual(dummyFlagsData.flags[0].FlagDetails)
     });
 
-    const req = httpMock.expectOne(`${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?welsh-required=N`);
+    const req = httpMock.expectOne(`${caseFlagsRefdataApiUrl.replace(':sid', 'BBA3')}?welsh-required=N&available-external-flag=N`);
     expect(req.request.method).toEqual('GET');
     req.flush(dummyFlagsData);
   });
diff --git a/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.ts b/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.ts
index 97ce2c7854..9ed5d8f7e0 100644
--- a/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.ts
+++ b/projects/ccd-case-ui-toolkit/src/lib/shared/services/case-flag/case-flag-refdata.service.ts
@@ -24,31 +24,26 @@ export class CaseFlagRefdataService {
    */
   public getCaseFlagsRefdata(serviceId: string, flagType?: RefdataCaseFlagType, welshRequired?: boolean, externalFlagsOnly?: boolean): Observable<FlagType[]> {
     let url = this.appConfig.getCaseFlagsRefdataApiUrl();
-
     if (url) {
       url = url.replace(':sid', serviceId);
+      const requestSearchParams = new URLSearchParams();
       if (flagType) {
-        url += `?flag-type=${flagType}`;
+        requestSearchParams.set('flag-type', flagType);
       }
       if (typeof welshRequired === 'boolean') {
-        // Check if flag-type has been added to the query string; if so, append welsh-required with '&'
-        url.indexOf('?') > -1 ? url += '&' : url += '?';
-        welshRequired ? url += 'welsh-required=Y' : url += 'welsh-required=N';
-      }
-
-      if (externalFlagsOnly) {
-        // Check if anything has been added to the query string; if so, append available-external-flag with '&'
-        url.indexOf('?') > -1 ? url += '&' : url += '?';
-        url += 'available-external-flag=Y';
+        const welshFlagValue = welshRequired ? 'Y' : 'N';
+        requestSearchParams.set('welsh-required', welshFlagValue);
       }
-
+      const externalFlagsValue = externalFlagsOnly ? 'Y' : 'N';
+      requestSearchParams.set('available-external-flag', externalFlagsValue);
+      url = `${url}?${requestSearchParams.toString()}`;
       return this.http
-        .get(url, {observe: 'body'})
+        .get(url, { observe: 'body' })
         .pipe(
           // Reference Data Common API returns a single object with a "flags" array, which itself contains a single object
           // with a "FlagDetails" array, which contains a hierarchy of flag types in an object - one each for "Party" flags
           // and "Case" flags
-          map(body => {
+          map((body) => {
             if (!body || !body.flags || !body.flags.length || !body.flags[0].FlagDetails || !body.flags[0].FlagDetails.length) {
               // Note: Reference Data Common API appears to respond with a 404 error rather than send an empty response,
               // so this may be redundant