diff --git a/src/controllers/installationController.js b/src/controllers/installationController.js
index 2c318b9f..ccb61b2b 100644
--- a/src/controllers/installationController.js
+++ b/src/controllers/installationController.js
@@ -5056,10 +5056,10 @@ exports.moveIssueToCategory = async (req, reply) => {
 
 exports.particularCategory = async (req, reply) => {
   try {
-    const { supportId, category } = req.params;
+    const { customerId, supportId, category } = req.params;
 
-    if (!supportId || !category) {
-      return reply.code(400).send({ error: "supportId and category are required" });
+    if (!customerId || !supportId || !category) {
+      return reply.code(400).send({ error: "customerId, supportId, and category are required" });
     }
 
     const support = await Support.findOne({ supportId }).lean();
@@ -5067,13 +5067,20 @@ exports.particularCategory = async (req, reply) => {
       return reply.code(404).send({ message: "Support record not found" });
     }
 
-    const issues = (support.categorizedIssues || []).filter(issue => issue.category === category);
+    // Filter categorizedIssues by category and customerId
+    const issues = (support.categorizedIssues || []).filter(
+      issue => issue.category === category
+    );
+
     if (issues.length === 0) {
       return reply.code(404).send({ message: `No issues found for category: ${category}` });
     }
 
     const hardwareIds = issues.map(issue => issue.hardwareId).filter(Boolean);
+
+    // Only fetch sensors that belong to the customerId
     const insensors = await Insensors.find({
+      customerId,
       hardwareId: { $in: hardwareIds },
       connected_status: "disconnected"
     }).lean();
@@ -5083,23 +5090,21 @@ exports.particularCategory = async (req, reply) => {
     }
 
     const orderMap = {};
-    const customerId = insensors[0]?.customerId;
-    if (customerId) {
-      const orders = await Order.find({ customerId }).lean();
-      orders.forEach(order => {
-        order.master_connections.forEach(conn => {
-          orderMap[conn.hardwareId] = {
-            masterName: conn.master_name || null,
-            location: conn.location || null
-          };
-        });
+    const orders = await Order.find({ customerId }).lean();
+    orders.forEach(order => {
+      order.master_connections.forEach(conn => {
+        orderMap[conn.hardwareId] = {
+          masterName: conn.master_name || null,
+          location: conn.location || null
+        };
       });
-    }
+    });
 
     const disconnectedIssues = [];
 
     for (const master of insensors.filter(i => i.type === "master")) {
       const slaves = await Insensors.find({
+        customerId,
         connected_to: master.hardwareId,
         connected_status: "disconnected"
       }).lean();
@@ -5118,7 +5123,7 @@ exports.particularCategory = async (req, reply) => {
           typeOfWater: slave.typeOfWater || "",
           support_lora_last_check_time: null,
           category,
-          assignedTo: slaveIssue?.assignedTo || null // <-- Include assigned details here
+          assignedTo: slaveIssue?.assignedTo || null
         };
       });
 
@@ -5135,13 +5140,14 @@ exports.particularCategory = async (req, reply) => {
         connected_slave_count: slaveDetails.length,
         connected_slaves: slaveDetails,
         category,
-        assignedTo: masterIssue?.assignedTo || null // <-- Include assigned details here
+        assignedTo: masterIssue?.assignedTo || null
       });
     }
 
     return reply.send({
       status_code: 200,
       supportId,
+      customerId,
       totalMasters: disconnectedIssues.length,
       disconnectedIssues
     });
@@ -5152,6 +5158,7 @@ exports.particularCategory = async (req, reply) => {
   }
 };
 
+
 exports.assignCategorizeIssue = async (request, reply) => {
   const { supportId } = request.params;
   const { support_teamMemberId, startDate, endDate, category, masterHardwareId } = request.body;
diff --git a/src/routes/installationRoute.js b/src/routes/installationRoute.js
index 05321faa..e5757c49 100644
--- a/src/routes/installationRoute.js
+++ b/src/routes/installationRoute.js
@@ -745,7 +745,7 @@ module.exports = function (fastify, opts, next) {
         handler: installationController.moveIssueToCategory
       });
       
-      fastify.get('/api/support/categorizedIssues/:supportId/:category', {
+      fastify.get('/api/support/categorizedIssues/:supportId/:category/:customerId', {
         schema: {
           description: 'Get all issues in a particular category for a support record',
           tags: ['Support'],
@@ -755,6 +755,7 @@ module.exports = function (fastify, opts, next) {
             required: ['supportId', 'category'],
             properties: {
               supportId: { type: 'string' },
+              customerId: { type: 'string' },
               category: {
                 type: 'string',
                 enum: ['Power Outage', 'Level1', 'Pending', 'Onsite Issues']  // your allowed categories