Add scope source operation to access review n8n node

Campaigns cannot be started without at least one scope source, but the
n8n node had no way to attach sources after creation. Expose the
addAccessReviewCampaignSource mutation as an Add Source operation so
workflows can configure sources before starting.

Return INVALID instead of INTERNAL when start fails due to missing
sources or invalid status, so n8n surfaces the real error message.

Signed-off-by: Cursor Agent <cursoragent@cursor.com>

Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>

packages/n8n-node/nodes/Probo/actions/accessReview/addSource.operation.ts

@@ -0,0 +1,87 @@
+// Copyright (c) 2025-2026 Probo Inc <hello@probo.com>.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+import type { INodeProperties, IExecuteFunctions, INodeExecutionData } from 'n8n-workflow';
+import { proboApiRequest } from '../../GenericFunctions';
+
+export const description: INodeProperties[] = [
+	{
+		displayName: 'Access Review Campaign ID',
+		name: 'accessReviewCampaignId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['accessReview'],
+				operation: ['addSource'],
+			},
+		},
+		default: '',
+		description: 'The ID of the access review campaign',
+		required: true,
+	},
+	{
+		displayName: 'Access Review Source ID',
+		name: 'accessReviewSourceId',
+		type: 'string',
+		displayOptions: {
+			show: {
+				resource: ['accessReview'],
+				operation: ['addSource'],
+			},
+		},
+		default: '',
+		description: 'The ID of the access review source to add to the campaign',
+		required: true,
+	},
+];
+
+export async function execute(
+	this: IExecuteFunctions,
+	itemIndex: number,
+): Promise<INodeExecutionData> {
+	const accessReviewCampaignId = this.getNodeParameter('accessReviewCampaignId', itemIndex) as string;
+	const accessReviewSourceId = this.getNodeParameter('accessReviewSourceId', itemIndex) as string;
+
+	const query = `
+		mutation AddAccessReviewCampaignSource($input: AddAccessReviewCampaignSourceInput!) {
+			addAccessReviewCampaignSource(input: $input) {
+				accessReviewCampaign {
+					id
+					name
+					description
+					status
+					startedAt
+					completedAt
+					createdAt
+					updatedAt
+				}
+			}
+		}
+	`;
+
+	const responseData = await proboApiRequest.call(this, query, {
+		input: { accessReviewCampaignId, accessReviewSourceId },
+	});
+
+	return {
+		json: responseData,
+		pairedItem: { item: itemIndex },
+	};
+}

packages/n8n-node/nodes/Probo/actions/accessReview/index.ts

@@ -19,6 +19,7 @@
 // SOFTWARE.
 
 import type { INodeProperties } from 'n8n-workflow';
+import * as addSourceOp from './addSource.operation';
 import * as createOp from './create.operation';
 import * as deleteOp from './delete.operation';
 import * as getOp from './get.operation';
@@ -40,6 +41,12 @@ export const description: INodeProperties[] = [
 			},
 		},
 		options: [
+			{
+				name: 'Add Source',
+				value: 'addSource',
+				description: 'Add a scope source to an access review campaign',
+				action: 'Add a scope source to an access review campaign',
+			},
 			{
 				name: 'Cancel',
 				value: 'cancel',
@@ -91,6 +98,7 @@ export const description: INodeProperties[] = [
 		],
 		default: 'create',
 	},
+	...addSourceOp.description,
 	...createOp.description,
 	...deleteOp.description,
 	...getOp.description,
@@ -102,6 +110,7 @@ export const description: INodeProperties[] = [
 ];
 
 export {
+	addSourceOp as addSource,
 	createOp as create,
 	deleteOp as delete,
 	getOp as get,

pkg/server/api/console/v1/access_review_campaign_resolvers.go

@@ -9,6 +9,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"strings"
 
 	"github.com/vikstrous/dataloadgen"
 	"go.gearno.de/kit/log"
@@ -796,6 +797,10 @@ func (r *mutationResolver) StartAccessReviewCampaign(ctx context.Context, input
 
 	campaign, err := r.accessReview.StartCampaign(ctx, scope, input.AccessReviewCampaignID)
 	if err != nil {
+		if strings.HasPrefix(err.Error(), "cannot start campaign:") {
+			return nil, gqlutils.Invalid(ctx, err)
+		}
+
 		r.logger.ErrorCtx(ctx, "cannot start access review campaign", log.Error(err))
 
 		return nil, gqlutils.Internal(ctx)