diff --git a/app/routes/client-validation-issues.js b/app/routes/client-validation-issues.js
new file mode 100644
index 000000000..358ca5505
--- /dev/null
+++ b/app/routes/client-validation-issues.js
@@ -0,0 +1,28 @@
+import { ClientValidationIssues } from '../../service/client-validation-service';
+const routes = [
+  {
+    method: 'GET',
+    path: '/etl/client_validation',
+    config: {
+      handler: function (request, reply) {
+        let service = new ClientValidationIssues();
+        service
+          .generateVerificationClients(request.query)
+          .then((res) => reply(res))
+          .catch((err) => {
+            reply(err);
+          });
+      },
+      description: 'Get all Clients with validation issues',
+      notes: 'Returns all  clients with validation issues',
+      tags: ['api'],
+      validate: {
+        options: {
+          allowUnknown: true
+        },
+        params: {}
+      }
+    }
+  }
+];
+exports.routes = (server) => server.route(routes);
diff --git a/service/client-validation-service.js b/service/client-validation-service.js
new file mode 100644
index 000000000..0b4739613
--- /dev/null
+++ b/service/client-validation-service.js
@@ -0,0 +1,92 @@
+const db = require('../etl-db');
+const Promise = require('bluebird');
+
+export class ClientValidationIssues {
+  generateVerificationClients(params) {
+    const that = this;
+    return new Promise(function (resolve, reject) {
+      const sql = that.verificationClientsQuery(
+        params.locationUuid,
+        params.limit,
+        params.offset
+      );
+
+      const queryParts = {
+        sql: sql
+      };
+      return db.queryServer(queryParts, function (result) {
+        resolve(result);
+      });
+    });
+  }
+
+  verificationClientsQuery(location, limit, offset) {
+    return (
+      `SELECT
+    county,
+    l.name AS 'health_facility',
+    mfl_code,
+    CONCAT(COALESCE(nv.clientNumber, ''),',',COALESCE(cc.identifier,'')) as 'identifiers',
+    pa.value as status,
+    fh.person_id,
+    fh.uuid as patient_uuid,
+    nv.errorDescription as "error_description",
+    CONCAT(COALESCE(person_name.given_name, ''),
+            ' ',
+            COALESCE(person_name.middle_name, ''),
+            ' ',
+            COALESCE(person_name.family_name, '')) AS 'person_name',
+    GROUP_CONCAT(DISTINCT contacts.value
+        SEPARATOR ',') AS 'phone_number',
+    DATE_FORMAT(pf.birthdate, '%Y-%m-%d') AS 'date_of_birth',  
+    EXTRACT(YEAR FROM (FROM_DAYS(DATEDIFF(NOW(), pf.birthdate)))) AS age,
+    pf.gender
+    
+FROM
+    etl.flat_hiv_summary_v15b fh
+        LEFT JOIN
+    amrs.patient_identifier cc ON (fh.person_id = cc.patient_id
+        AND cc.identifier_type = 28
+        AND cc.voided = 0)
+        LEFT JOIN
+    amrs.person pf ON (fh.person_id = pf.person_id AND dead = 0
+        AND pf.voided = 0)
+        LEFT JOIN
+    amrs.location l ON (l.location_id = fh.last_non_transit_location_id)
+        LEFT JOIN
+    ndwr.mfl_codes lx ON (l.location_id = lx.location_id)
+        LEFT JOIN
+    amrs.person_name person_name ON (fh.person_id = person_name.person_id
+        AND (person_name.voided IS NULL
+        || person_name.voided = 0)
+        AND person_name.preferred = 1)
+        LEFT JOIN
+    amrs.person_attribute contacts ON (fh.person_id = contacts.person_id
+        AND (contacts.voided IS NULL
+        || contacts.voided = 0)
+        AND contacts.person_attribute_type_id IN (10 , 48))
+        LEFT JOIN
+    amrs.patient_identifier id ON (id.patient_id = fh.person_id
+        AND id.identifier_type = 45
+        AND id.voided = 0)
+        LEFT JOIN
+    etl.hiv_monthly_report_dataset_v1_2 dd ON (dd.person_id = fh.person_id)
+    LEFT JOIN
+    amrs.person_attribute pa ON (pa.person_id = fh.person_id)
+    inner join etl.nupi_verification nv on nv.clientNumber=id.identifier
+WHERE
+        fh.location_id != 195 
+        AND pa.person_attribute_type_id = 74
+        AND l.uuid = '${location}'
+        AND fh.next_clinical_datetime_hiv IS NULL
+        AND fh.is_clinical_encounter = 1
+        AND (TIMESTAMPDIFF(DAY, fh.rtc_date, CURDATE()) < 30)
+        AND fh.cur_arv_meds IS NOT NULL
+GROUP BY fh.person_id limit ` +
+      limit +
+      ` offset ` +
+      offset +
+      `;`
+    );
+  }
+}