diff --git a/.changeset/gold-vans-sin.md b/.changeset/gold-vans-sin.md
new file mode 100644
index 0000000000..d99cb9834d
--- /dev/null
+++ b/.changeset/gold-vans-sin.md
@@ -0,0 +1,10 @@
+---
+'@backstage/plugin-scaffolder-backend-module-gitlab': patch
+---
+
+Fix input schema validation issue for gitlab actions:
+
+- gitlab:group:ensureExists
+- gitlab:projectAccessToken:create
+- gitlab:projectDeployToken:create
+- gitlab:projectVariable:create
diff --git a/plugins/scaffolder-backend-module-gitlab/api-report.md b/plugins/scaffolder-backend-module-gitlab/api-report.md
index 96ec3445dc..f7cf6024ec 100644
--- a/plugins/scaffolder-backend-module-gitlab/api-report.md
+++ b/plugins/scaffolder-backend-module-gitlab/api-report.md
@@ -12,10 +12,9 @@ export const createGitlabGroupEnsureExistsAction: (options: {
   integrations: ScmIntegrationRegistry;
 }) => TemplateAction<
   {
+    path: string[];
     repoUrl: string;
     token?: string | undefined;
-  } & {
-    path: string[];
   },
   {
     groupId?: number | undefined;
@@ -27,10 +26,9 @@ export const createGitlabProjectAccessTokenAction: (options: {
   integrations: ScmIntegrationRegistry;
 }) => TemplateAction<
   {
+    projectId: string | number;
     repoUrl: string;
     token?: string | undefined;
-  } & {
-    projectId: string | number;
     name?: string | undefined;
     accessLevel?: number | undefined;
     scopes?: string[] | undefined;
@@ -45,11 +43,10 @@ export const createGitlabProjectDeployTokenAction: (options: {
   integrations: ScmIntegrationRegistry;
 }) => TemplateAction<
   {
-    repoUrl: string;
-    token?: string | undefined;
-  } & {
     name: string;
     projectId: string | number;
+    repoUrl: string;
+    token?: string | undefined;
     username?: string | undefined;
     scopes?: string[] | undefined;
   },
@@ -64,13 +61,12 @@ export const createGitlabProjectVariableAction: (options: {
   integrations: ScmIntegrationRegistry;
 }) => TemplateAction<
   {
-    repoUrl: string;
-    token?: string | undefined;
-  } & {
     key: string;
     value: string;
     projectId: string | number;
+    repoUrl: string;
     variableType: string;
+    token?: string | undefined;
     variableProtected?: boolean | undefined;
     masked?: boolean | undefined;
     raw?: boolean | undefined;
diff --git a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabGroupEnsureExistsAction.ts b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabGroupEnsureExistsAction.ts
index 698d402697..f96d57e356 100644
--- a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabGroupEnsureExistsAction.ts
+++ b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabGroupEnsureExistsAction.ts
@@ -36,7 +36,7 @@ export const createGitlabGroupEnsureExistsAction = (options: {
     id: 'gitlab:group:ensureExists',
     description: 'Ensures a Gitlab group exists',
     schema: {
-      input: commonGitlabConfig.and(
+      input: commonGitlabConfig.merge(
         z.object({
           path: z
             .array(z.string(), {
diff --git a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectAccessTokenAction.ts b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectAccessTokenAction.ts
index 832eb4cac7..614de0e221 100644
--- a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectAccessTokenAction.ts
+++ b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectAccessTokenAction.ts
@@ -33,7 +33,7 @@ export const createGitlabProjectAccessTokenAction = (options: {
   return createTemplateAction({
     id: 'gitlab:projectAccessToken:create',
     schema: {
-      input: commonGitlabConfig.and(
+      input: commonGitlabConfig.merge(
         z.object({
           projectId: z.union([z.number(), z.string()], {
             description: 'Project ID',
diff --git a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectDeployTokenAction.ts b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectDeployTokenAction.ts
index 3010bd33d2..1665d23b39 100644
--- a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectDeployTokenAction.ts
+++ b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectDeployTokenAction.ts
@@ -36,7 +36,7 @@ export const createGitlabProjectDeployTokenAction = (options: {
   return createTemplateAction({
     id: 'gitlab:projectDeployToken:create',
     schema: {
-      input: commonGitlabConfig.and(
+      input: commonGitlabConfig.merge(
         z.object({
           projectId: z.union([z.number(), z.string()], {
             description: 'Project ID',
diff --git a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectVariableAction.ts b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectVariableAction.ts
index a6043bea01..a154c16662 100644
--- a/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectVariableAction.ts
+++ b/plugins/scaffolder-backend-module-gitlab/src/actions/createGitlabProjectVariableAction.ts
@@ -34,7 +34,7 @@ export const createGitlabProjectVariableAction = (options: {
   return createTemplateAction({
     id: 'gitlab:projectVariable:create',
     schema: {
-      input: commonGitlabConfig.and(
+      input: commonGitlabConfig.merge(
         z.object({
           projectId: z.union([z.number(), z.string()], {
             description: 'Project ID',