diff --git a/plugins/scaffolder-backend-module-github/api-report.md b/plugins/scaffolder-backend-module-github/api-report.md
index 4f3cd819ad..b1a1c80af5 100644
--- a/plugins/scaffolder-backend-module-github/api-report.md
+++ b/plugins/scaffolder-backend-module-github/api-report.md
@@ -128,7 +128,7 @@ export interface CreateGithubPullRequestActionOptions {
       } | null>;
     }
   >;
-  config: Config;
+  config?: Config;
   githubCredentialsProvider?: GithubCredentialsProvider;
   integrations: ScmIntegrationRegistry;
 }
diff --git a/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.test.ts b/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.test.ts
index dd7641ce4c..20508494b8 100644
--- a/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.test.ts
+++ b/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.test.ts
@@ -955,4 +955,64 @@ describe('createPublishGithubPullRequestAction', () => {
       });
     });
   });
+
+  describe('with author fallback and no config', () => {
+    let input: GithubPullRequestActionInput;
+    let ctx: ActionContext<GithubPullRequestActionInput>;
+
+    beforeEach(() => {
+      input = {
+        repoUrl: 'github.com?owner=myorg&repo=myrepo',
+        title: 'Create my new app',
+        branchName: 'new-app',
+        description: 'This PR is really good',
+        gitAuthorName: 'Foo Bar',
+      };
+
+      mockDir.setContent({
+        [workspacePath]: { 'file.txt': 'Hello there!' },
+      });
+
+      ctx = createMockActionContext({ input, workspacePath });
+    });
+
+    it('creates a pull request with using author name and email fallback when have no config', async () => {
+      const clientFactory = jest.fn(async () => fakeClient as any);
+      const githubCredentialsProvider: GithubCredentialsProvider = {
+        getCredentials: jest.fn(),
+      };
+
+      const instanceWithConfig = createPublishGithubPullRequestAction({
+        integrations,
+        githubCredentialsProvider,
+        clientFactory,
+      });
+
+      await instanceWithConfig.handler(ctx);
+
+      expect(fakeClient.createPullRequest).toHaveBeenCalledWith({
+        owner: 'myorg',
+        repo: 'myrepo',
+        title: 'Create my new app',
+        head: 'new-app',
+        body: 'This PR is really good',
+        changes: [
+          {
+            commit: 'Create my new app',
+            files: {
+              'file.txt': {
+                content: Buffer.from('Hello there!').toString('base64'),
+                encoding: 'base64',
+                mode: '100644',
+              },
+            },
+            author: {
+              email: 'scaffolder@backstage.io',
+              name: 'Foo Bar',
+            },
+          },
+        ],
+      });
+    });
+  });
 });
diff --git a/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.ts b/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.ts
index cc5e1280ef..a72ec8345b 100644
--- a/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.ts
+++ b/plugins/scaffolder-backend-module-github/src/actions/githubPullRequest.ts
@@ -104,7 +104,7 @@ export interface CreateGithubPullRequestActionOptions {
   /**
    * An instance of {@link @backstage/config#Config} that will be used in the action.
    */
-  config: Config;
+  config?: Config;
 }
 
 type GithubPullRequest = {
@@ -351,7 +351,7 @@ export const createPublishGithubPullRequestAction = (
               files,
               commit:
                 commitMessage ??
-                config.getOptionalString('scaffolder.defaultCommitMessage') ??
+                config?.getOptionalString('scaffolder.defaultCommitMessage') ??
                 title,
             },
           ],
@@ -365,10 +365,10 @@ export const createPublishGithubPullRequestAction = (
         const gitAuthorInfo = {
           name:
             gitAuthorName ??
-            config.getOptionalString('scaffolder.defaultAuthor.name'),
+            config?.getOptionalString('scaffolder.defaultAuthor.name'),
           email:
             gitAuthorEmail ??
-            config.getOptionalString('scaffolder.defaultAuthor.email'),
+            config?.getOptionalString('scaffolder.defaultAuthor.email'),
         };
 
         if (gitAuthorInfo.name || gitAuthorInfo.email) {