diff --git a/core-web/libs/sdk/client/src/lib/client/page/page-api.spec.ts b/core-web/libs/sdk/client/src/lib/client/page/page-api.spec.ts
index da663732c922..d066cf4735f9 100644
--- a/core-web/libs/sdk/client/src/lib/client/page/page-api.spec.ts
+++ b/core-web/libs/sdk/client/src/lib/client/page/page-api.spec.ts
@@ -169,10 +169,7 @@ describe('PageClient', () => {
                         mode: 'LIVE',
                         languageId: '1',
                         fireRules: false,
-                        siteId: 'test-site',
-                        personaId: undefined,
-                        publishDate: undefined,
-                        variantName: undefined
+                        siteId: 'test-site'
                     }
                 }
             });
@@ -355,10 +352,7 @@ describe('PageClient', () => {
                         mode: 'LIVE',
                         languageId: '1',
                         fireRules: false,
-                        siteId: 'test-site',
-                        personaId: undefined,
-                        publishDate: undefined,
-                        variantName: undefined
+                        siteId: 'test-site'
                     });
                 }
             }
@@ -591,7 +585,6 @@ describe('PageClient', () => {
                         fireRules: false,
                         siteId: 'test-site',
                         personaId: 'test-persona',
-                        publishDate: undefined,
                         variantName: 'test-variant',
                         customVar: 'customValue'
                     });
@@ -920,10 +913,7 @@ describe('PageClient', () => {
                     mode: 'LIVE',
                     languageId: '1',
                     fireRules: false,
-                    siteId: 'test-site',
-                    personaId: undefined,
-                    publishDate: undefined,
-                    variantName: undefined
+                    siteId: 'test-site'
                 });
             });
 
@@ -1222,6 +1212,29 @@ describe('PageClient', () => {
                 expect(result.graphql.variables).toEqual(getRequestBody().variables);
             });
 
+            it('omits undefined optional variables from the returned graphql.variables', async () => {
+                const pageClient = new PageClient(
+                    validConfig,
+                    requestOptions,
+                    new FetchHttpClient()
+                );
+                const result = await pageClient.get('/home');
+
+                expect(result.graphql.variables).toEqual({
+                    url: '/home',
+                    mode: 'LIVE',
+                    languageId: '1',
+                    fireRules: false,
+                    siteId: 'test-site'
+                });
+                expect(Object.values(result.graphql.variables).every((value) => value !== undefined)).toBe(
+                    true
+                );
+                expect(JSON.parse(JSON.stringify(result.graphql.variables))).toEqual(
+                    result.graphql.variables
+                );
+            });
+
             it('result.errors is undefined when response has no errors', async () => {
                 const pageClient = new PageClient(
                     validConfig,
diff --git a/core-web/libs/sdk/client/src/lib/client/page/page-api.ts b/core-web/libs/sdk/client/src/lib/client/page/page-api.ts
index 743ef252f143..84adfef2aa99 100644
--- a/core-web/libs/sdk/client/src/lib/client/page/page-api.ts
+++ b/core-web/libs/sdk/client/src/lib/client/page/page-api.ts
@@ -31,6 +31,16 @@ function logVerboseError(
     );
 }
 
+/**
+ * Removes undefined values so returned GraphQL metadata stays JSON-serializable
+ * for consumers such as Next.js Pages Router.
+ */
+function omitUndefinedValues(variables: Record<string, unknown>): Record<string, unknown> {
+    return Object.fromEntries(
+        Object.entries(variables).filter(([, value]) => value !== undefined)
+    );
+}
+
 /**
  * Client for interacting with the DotCMS Page API.
  * Provides methods to retrieve and manipulate pages.
@@ -160,6 +170,7 @@ export class PageClient extends BaseApiClient {
 
         const requestHeaders = this.requestOptions.headers;
         const requestBody = JSON.stringify({ query: completeQuery, variables: requestVariables });
+        const responseVariables = omitUndefinedValues(requestVariables);
 
         try {
             const response = await fetchGraphQL({
@@ -203,7 +214,7 @@ export class PageClient extends BaseApiClient {
                         message: firstError?.message ?? 'GraphQL query failed',
                         data: response.errors
                     }),
-                    { query: completeQuery, variables: requestVariables }
+                    { query: completeQuery, variables: responseVariables }
                 );
             }
 
@@ -239,7 +250,7 @@ export class PageClient extends BaseApiClient {
 
                     throw new DotErrorPage(message, status, code, undefined, {
                         query: completeQuery,
-                        variables: requestVariables
+                        variables: responseVariables
                     });
                 }
             }
@@ -262,7 +273,7 @@ export class PageClient extends BaseApiClient {
                         message: `Page '${normalizedUrl}' was not found`,
                         data: response.errors
                     }),
-                    { query: completeQuery, variables: requestVariables }
+                    { query: completeQuery, variables: responseVariables }
                 );
             }
 
@@ -274,7 +285,7 @@ export class PageClient extends BaseApiClient {
                 content: contentResponse,
                 graphql: {
                     query: completeQuery,
-                    variables: requestVariables
+                    variables: responseVariables
                 },
                 errors: response.errors?.length ? response.errors : undefined,
                 ...(styleEditorSchemas?.length && { styleEditorSchemas })
@@ -290,7 +301,7 @@ export class PageClient extends BaseApiClient {
                     error.status,
                     'UNKNOWN',
                     error,
-                    { query: completeQuery, variables: requestVariables }
+                    { query: completeQuery, variables: responseVariables }
                 );
             }
 
@@ -299,7 +310,7 @@ export class PageClient extends BaseApiClient {
                 500,
                 'UNKNOWN',
                 undefined,
-                { query: completeQuery, variables: requestVariables }
+                { query: completeQuery, variables: responseVariables }
             );
         }
     }