diff --git a/app/Views/abdm/task_board.php b/app/Views/abdm/task_board.php
index fe7b06a..28f08cf 100644
--- a/app/Views/abdm/task_board.php
+++ b/app/Views/abdm/task_board.php
@@ -50,7 +50,30 @@
                     </thead>
                     <tbody>
                     <?php foreach (($tasks ?? []) as $t): ?>
-                        <tr data-task-id="<?= (int) ($t['id'] ?? 0) ?>" data-task-type="<?= esc((string) ($t['task_type'] ?? '')) ?>" data-entity-id="<?= esc((string) ($t['entity_id'] ?? '')) ?>">
+                        <?php
+                            $type = strtolower((string) ($t['task_type'] ?? ''));
+                            $abhaId = trim((string) ($t['abha_id'] ?? ''));
+                            $hasValidAbha = preg_match('/^\d{14}$/', $abhaId) === 1;
+
+                            $payload = json_decode((string) ($t['payload_json'] ?? ''), true);
+                            if (! is_array($payload)) {
+                                $payload = [];
+                            }
+                            $meta = (isset($payload['meta']) && is_array($payload['meta'])) ? $payload['meta'] : [];
+                            $opdId = (int) ($meta['opd_id'] ?? 0);
+                            $opdSessionId = (int) ($meta['opd_session_id'] ?? 0);
+                            $showSandbox = ($type === 'opd_prescription_publish' && $hasValidAbha && $opdId > 0);
+                        ?>
+                        <tr
+                            data-task-id="<?= (int) ($t['id'] ?? 0) ?>"
+                            data-task-type="<?= esc((string) ($t['task_type'] ?? '')) ?>"
+                            data-entity-id="<?= esc((string) ($t['entity_id'] ?? '')) ?>"
+                            data-patient-id="<?= (int) ($t['patient_id'] ?? 0) ?>"
+                            data-abha-id="<?= esc($abhaId) ?>"
+                            data-opd-id="<?= $opdId ?>"
+                            data-opd-session-id="<?= $opdSessionId ?>"
+                            data-sandbox-eligible="<?= $showSandbox ? '1' : '0' ?>"
+                        >
                             <td><?= (int) ($t['id'] ?? 0) ?></td>
                             <td>
                                 <div><strong><?= esc((string) ($t['task_code'] ?? '')) ?></strong></div>
@@ -68,7 +91,6 @@
                             <td><span class="badge bg-secondary status-pill"><?= esc((string) ($t['status'] ?? 'pending')) ?></span></td>
                             <td>
                                 <div class="d-flex gap-1 flex-wrap">
-                                    <?php $type = strtolower((string) ($t['task_type'] ?? '')); ?>
                                     <?php if ($type === 'patient_abha_create' || $type === 'patient_abha_link'): ?>
                                         <button class="btn btn-sm btn-outline-success action-btn" data-action="create_abha">Create ABHA</button>
                                     <?php elseif ($type === 'patient_abha_update'): ?>
@@ -76,6 +98,9 @@
                                     <?php else: ?>
                                         <button class="btn btn-sm btn-outline-warning action-btn" data-action="submit">Submit</button>
                                     <?php endif; ?>
+                                    <?php if ($showSandbox): ?>
+                                        <button class="btn btn-sm btn-outline-info sandbox-btn">Sandbox</button>
+                                    <?php endif; ?>
                                     <button class="btn btn-sm btn-outline-dark close-btn">Close</button>
                                 </div>
                             </td>
@@ -87,6 +112,62 @@
         </div>
     </div>
 
+    <div class="card shadow-sm mt-3 d-none" id="abdmSandboxCard">
+        <div class="card-header py-2 d-flex justify-content-between align-items-center">
+            <strong>ABDM Sandbox Actions</strong>
+            <button type="button" class="btn btn-sm btn-outline-secondary" id="btnSandboxHide">Hide</button>
+        </div>
+        <div class="card-body p-3">
+            <div class="small text-muted mb-2" id="abdmSandboxContext">Select eligible OPD Publish task to use sandbox actions.</div>
+
+            <div class="row g-2 mb-2">
+                <div class="col-md-6">
+                    <label class="form-label mb-1 small">ABHA Number</label>
+                    <input type="text" class="form-control form-control-sm" id="tb_abha_id" maxlength="14" placeholder="14-digit ABHA">
+                </div>
+                <div class="col-md-6">
+                    <label class="form-label mb-1 small">QR Payload (Scan &amp; Share)</label>
+                    <input type="text" class="form-control form-control-sm" id="tb_abdm_qr_payload" placeholder="Paste scanned QR payload">
+                </div>
+            </div>
+
+            <div class="d-flex flex-wrap gap-2 mb-2">
+                <button type="button" class="btn btn-outline-primary btn-sm" id="tb_btn_abdm_scan_lookup">Scan Lookup</button>
+                <button type="button" class="btn btn-outline-secondary btn-sm" id="tb_btn_abdm_validate_abha">Validate ABHA</button>
+            </div>
+
+            <div class="row g-2 mb-2">
+                <div class="col-md-6">
+                    <input type="text" class="form-control form-control-sm" id="tb_abdm_purpose_code" placeholder="Purpose (ex: CAREMGT)">
+                </div>
+                <div class="col-md-6">
+                    <input type="datetime-local" class="form-control form-control-sm" id="tb_abdm_consent_expires_at">
+                </div>
+            </div>
+
+            <div class="d-flex flex-wrap gap-2 mb-2">
+                <button type="button" class="btn btn-outline-success btn-sm" id="tb_btn_abdm_consent_request">Request Consent</button>
+                <button type="button" class="btn btn-outline-warning btn-sm" id="tb_btn_abdm_share_fhir">Share FHIR</button>
+            </div>
+
+            <div class="mb-2">
+                <label class="form-label mb-1 small">Consent Handle</label>
+                <input type="text" class="form-control form-control-sm" id="tb_abdm_consent_handle" placeholder="Auto-filled after consent request">
+            </div>
+
+            <div class="row g-2 mb-2">
+                <div class="col-md-7">
+                    <input type="number" min="1" class="form-control form-control-sm" id="tb_abdm_claim_document_id" placeholder="Claim Document ID">
+                </div>
+                <div class="col-md-5">
+                    <button type="button" class="btn btn-outline-dark btn-sm w-100" id="tb_btn_abdm_claim_status">Claim Status</button>
+                </div>
+            </div>
+
+            <div class="small text-muted" id="abdmSandboxStatus">Ready</div>
+        </div>
+    </div>
+
     <div class="small text-muted mt-2" id="statusBox">Ready</div>
 </div>
 
@@ -122,8 +203,18 @@
     var modalAbhaInput = document.getElementById('modalAbhaInput');
     var modalTaskSummary = document.getElementById('modalTaskSummary');
     var modalConfirmBtn = document.getElementById('modalConfirmBtn');
+    var sandboxCard = document.getElementById('abdmSandboxCard');
+    var sandboxContext = document.getElementById('abdmSandboxContext');
+    var sandboxStatus = document.getElementById('abdmSandboxStatus');
+    var sandboxAbhaInput = document.getElementById('tb_abha_id');
+    var sandboxQrPayloadInput = document.getElementById('tb_abdm_qr_payload');
+    var sandboxPurposeCodeInput = document.getElementById('tb_abdm_purpose_code');
+    var sandboxConsentExpiresInput = document.getElementById('tb_abdm_consent_expires_at');
+    var sandboxConsentHandleInput = document.getElementById('tb_abdm_consent_handle');
+    var sandboxClaimDocumentInput = document.getElementById('tb_abdm_claim_document_id');
     var selectedAction = '';
     var selectedRow = null;
+    var sandboxRow = null;
 
     function applyFilter(filter) {
         var rows = document.querySelectorAll('#taskTable tbody tr');
@@ -172,6 +263,74 @@
         });
     }
 
+    function setSandboxStatus(msg, level) {
+        if (!sandboxStatus) {
+            return;
+        }
+        sandboxStatus.classList.remove('text-muted', 'text-success', 'text-danger', 'text-warning');
+        if (level === 'success') {
+            sandboxStatus.classList.add('text-success');
+        } else if (level === 'danger') {
+            sandboxStatus.classList.add('text-danger');
+        } else if (level === 'warning') {
+            sandboxStatus.classList.add('text-warning');
+        } else {
+            sandboxStatus.classList.add('text-muted');
+        }
+        sandboxStatus.textContent = msg || 'Ready';
+    }
+
+    function currentSandboxContext() {
+        if (!sandboxRow) {
+            return null;
+        }
+
+        return {
+            taskId: parseInt(sandboxRow.getAttribute('data-task-id') || '0', 10) || 0,
+            patientId: parseInt(sandboxRow.getAttribute('data-patient-id') || '0', 10) || 0,
+            opdId: parseInt(sandboxRow.getAttribute('data-opd-id') || '0', 10) || 0,
+            opdSessionId: parseInt(sandboxRow.getAttribute('data-opd-session-id') || '0', 10) || 0,
+            abhaId: (sandboxAbhaInput.value || '').trim()
+        };
+    }
+
+    function openSandboxForRow(row) {
+        if (!row || !sandboxCard) {
+            return;
+        }
+        if ((row.getAttribute('data-sandbox-eligible') || '0') !== '1') {
+            setSandboxStatus('Sandbox actions are available only for OPD Publish rows with valid ABHA and printed consult.', 'warning');
+            return;
+        }
+
+        sandboxRow = row;
+
+        var taskCode = '';
+        var patientName = '';
+        var taskCodeEl = row.querySelector('td:nth-child(2) strong');
+        var patientNameEl = row.querySelector('td:nth-child(3) div');
+        if (taskCodeEl) {
+            taskCode = taskCodeEl.textContent.trim();
+        }
+        if (patientNameEl) {
+            patientName = patientNameEl.textContent.trim();
+        }
+
+        var rowAbha = (row.getAttribute('data-abha-id') || '').trim();
+        sandboxAbhaInput.value = rowAbha;
+        sandboxQrPayloadInput.value = '';
+        sandboxPurposeCodeInput.value = sandboxPurposeCodeInput.value || 'CAREMGT';
+        sandboxConsentHandleInput.value = '';
+        sandboxClaimDocumentInput.value = '';
+
+        var opdId = row.getAttribute('data-opd-id') || '0';
+        var opdSessionId = row.getAttribute('data-opd-session-id') || '0';
+        sandboxContext.textContent = 'Task: ' + taskCode + ' | Patient: ' + patientName + ' | OPD: ' + opdId + ' | Session: ' + opdSessionId;
+        sandboxCard.classList.remove('d-none');
+        setSandboxStatus('Ready');
+        sandboxCard.scrollIntoView({ behavior: 'smooth', block: 'nearest' });
+    }
+
     function runAction(row, action) {
         var taskId = row.getAttribute('data-task-id');
         var abha = modalAbhaInput.value.trim();
@@ -220,6 +379,12 @@
         });
     });
 
+    document.querySelectorAll('.sandbox-btn').forEach(function (btn) {
+        btn.addEventListener('click', function () {
+            openSandboxForRow(btn.closest('tr'));
+        });
+    });
+
     applyFilter('patient_abha_create');
 
     modalConfirmBtn.addEventListener('click', function () {
@@ -254,12 +419,140 @@
                     setStatus(res.error_text || 'Close failed', true);
                     return;
                 }
+                if (sandboxRow === row && sandboxCard) {
+                    sandboxCard.classList.add('d-none');
+                    sandboxRow = null;
+                }
                 row.remove();
                 setStatus('Task closed');
             });
         });
     });
 
+    document.getElementById('btnSandboxHide').addEventListener('click', function () {
+        if (sandboxCard) {
+            sandboxCard.classList.add('d-none');
+        }
+        sandboxRow = null;
+    });
+
+    document.getElementById('tb_btn_abdm_scan_lookup').addEventListener('click', function () {
+        var qrPayload = (sandboxQrPayloadInput.value || '').trim();
+        if (!qrPayload) {
+            setSandboxStatus('Paste QR payload first.', 'warning');
+            return;
+        }
+        setSandboxStatus('Queuing Scan & Share lookup...');
+        post('<?= base_url('AbdmGateway/scan_share_lookup') ?>', {
+            qr_payload: qrPayload
+        }, function (res) {
+            if (res.ok !== 1) {
+                setSandboxStatus(res.error_text || 'Scan lookup failed.', 'danger');
+                return;
+            }
+            if (res.abha_id_hint) {
+                sandboxAbhaInput.value = (res.abha_id_hint || '').toString().trim();
+            }
+            setSandboxStatus('Scan lookup queued. Queue ID: ' + (res.queue_id || '-'), 'success');
+        });
+    });
+
+    document.getElementById('tb_btn_abdm_validate_abha').addEventListener('click', function () {
+        var abha = (sandboxAbhaInput.value || '').trim();
+        if (!/^\d{14}$/.test(abha)) {
+            setSandboxStatus('ABHA must be a 14-digit number.', 'warning');
+            return;
+        }
+        setSandboxStatus('Queuing ABHA validation...');
+        post('<?= base_url('AbdmGateway/abha_validate') ?>', {
+            abha_id: abha
+        }, function (res) {
+            if (res.ok !== 1) {
+                setSandboxStatus(res.error_text || 'ABHA validation queue failed.', 'danger');
+                return;
+            }
+            setSandboxStatus('ABHA validation queued. Queue ID: ' + (res.queue_id || '-'), 'success');
+        });
+    });
+
+    document.getElementById('tb_btn_abdm_consent_request').addEventListener('click', function () {
+        var ctx = currentSandboxContext();
+        if (!ctx || ctx.patientId <= 0) {
+            setSandboxStatus('Select an eligible OPD Publish row first.', 'warning');
+            return;
+        }
+        if (!/^\d{14}$/.test(ctx.abhaId)) {
+            setSandboxStatus('ABHA must be a 14-digit number.', 'warning');
+            return;
+        }
+
+        setSandboxStatus('Requesting consent...');
+        post('<?= base_url('AbdmGateway/consent_request') ?>', {
+            patient_id: ctx.patientId,
+            abha_id: ctx.abhaId,
+            purpose_code: (sandboxPurposeCodeInput.value || '').trim(),
+            expires_at: (sandboxConsentExpiresInput.value || '').trim().replace('T', ' ')
+        }, function (res) {
+            if (res.ok !== 1) {
+                setSandboxStatus(res.error_text || 'Consent request failed.', 'danger');
+                return;
+            }
+            if (res.consent_handle) {
+                sandboxConsentHandleInput.value = (res.consent_handle || '').toString();
+            }
+            setSandboxStatus('Consent requested. Handle: ' + (res.consent_handle || '-'), 'success');
+        });
+    });
+
+    document.getElementById('tb_btn_abdm_share_fhir').addEventListener('click', function () {
+        var ctx = currentSandboxContext();
+        if (!ctx || ctx.patientId <= 0 || ctx.opdId <= 0) {
+            setSandboxStatus('Select an eligible OPD Publish row first.', 'warning');
+            return;
+        }
+        if (!/^\d{14}$/.test(ctx.abhaId)) {
+            setSandboxStatus('ABHA must be a 14-digit number.', 'warning');
+            return;
+        }
+
+        setSandboxStatus('Checking consent and queuing FHIR share...');
+        post('<?= base_url('AbdmGateway/share_prescription_bundle') ?>', {
+            opd_id: ctx.opdId,
+            opd_session_id: ctx.opdSessionId,
+            patient_id: ctx.patientId,
+            abha_id: ctx.abhaId,
+            consent_handle: (sandboxConsentHandleInput.value || '').trim()
+        }, function (res) {
+            if (res.ok !== 1) {
+                setSandboxStatus(res.error_text || 'FHIR share queue failed.', 'danger');
+                return;
+            }
+            if (res.consent_handle) {
+                sandboxConsentHandleInput.value = (res.consent_handle || '').toString();
+            }
+            setSandboxStatus('FHIR share queued. Queue ID: ' + (res.queue_id || '-'), 'success');
+        });
+    });
+
+    document.getElementById('tb_btn_abdm_claim_status').addEventListener('click', function () {
+        var docId = parseInt((sandboxClaimDocumentInput.value || '0').toString(), 10) || 0;
+        if (docId <= 0) {
+            setSandboxStatus('Enter Claim Document ID first.', 'warning');
+            return;
+        }
+
+        setSandboxStatus('Queuing claim status request...');
+        post('<?= base_url('AbdmGateway/nhcx_claim_status_request') ?>', {
+            document_id: docId
+        }, function (res) {
+            if (res.ok !== 1) {
+                setSandboxStatus(res.error_text || 'Claim status queue failed.', 'danger');
+                return;
+            }
+            setSandboxStatus('Claim status queued. Queue ID: ' + (res.queue_id || '-'), 'success');
+        });
+    });
+
     document.getElementById('btnRefresh').addEventListener('click', function () {
         window.location.reload();
     });
diff --git a/app/Views/billing/opd_appointment_list_table.php b/app/Views/billing/opd_appointment_list_table.php
index 5a97927..1d3acad 100644
--- a/app/Views/billing/opd_appointment_list_table.php
+++ b/app/Views/billing/opd_appointment_list_table.php
@@ -21,16 +21,18 @@ if ($authUser) {
         </thead>
         <tbody>
         <?php if (!empty($rows)) : ?>
-            <?php foreach ($rows as $row) : ?>
+            <?php foreach ($rows as $idx => $row) : ?>
                 <?php $hasVitals = isset($row->has_vitals) && (int) $row->has_vitals === 1; ?>
                 <?php $isBookedTab = ($tabType ?? '') === 'booking'; ?>
                 <?php $isConfirmedForQueue = (int) ($row->is_confirmed_for_queue ?? 0) === 1; ?>
                 <?php $hasPrescription = (int) ($row->has_prescription ?? 0) === 1; ?>
+                <?php $hasQueueNo = (int) ($row->queue_no ?? 0) > 0; ?>
                 <?php $showFullActions = $hasPrescription || $isConfirmedForQueue; ?>
+                <?php $serialNo = ((int) $idx) + 1; ?>
                 <tr data-opd-id="<?= esc((int) ($row->opd_id ?? 0)) ?>" data-has-vitals="<?= esc((int) ($row->has_vitals ?? 0)) ?>" data-has-prescription="<?= esc($showFullActions ? 1 : 0) ?>">
                     <td><?= esc($row->opd_code ?? '') ?></td>
                     <td><?= esc(($row->P_name ?? '') . ' { ' . ($row->p_rname ?? '') . ' }') ?></td>
-                    <?php if (!empty($showQueue)) : ?><td><?= $hasPrescription ? esc((int) ($row->queue_no ?? 0)) : '-' ?></td><?php endif; ?>
+                    <?php if (!empty($showQueue)) : ?><td><?= esc($serialNo) ?></td><?php endif; ?>
                     <td><?= esc($row->p_code ?? '') ?></td>
                     <td><?= esc($row->opd_type ?? '') ?> / Amt: <?= esc($row->opd_fee_amount ?? '') ?></td>
                     <td>
@@ -45,6 +47,11 @@ if ($authUser) {
                                 </a>
                             <?php endif; ?>
                         <?php else : ?>
+                            <?php if (!empty($showQueue) && !$hasQueueNo) : ?>
+                                <button type="button" class="btn btn-outline-success btn-sm btn-opd-create-queue" data-opdid="<?= esc((int) ($row->opd_id ?? 0)) ?>" title="Queue">
+                                    Queue
+                                </button>
+                            <?php endif; ?>
                             <?php if ($canOpenPrescription && $showFullActions) : ?>
                                 <a class="btn btn-outline-primary btn-sm" title="Consult" href="javascript:load_form('/Opd_prescription/Prescription/<?= esc((int) ($row->opd_id ?? 0)) ?>','Consult');">
                                     Consult
diff --git a/app/Views/billing/opd_prescription_basic.php b/app/Views/billing/opd_prescription_basic.php
index 8d68422..7cd4599 100644
--- a/app/Views/billing/opd_prescription_basic.php
+++ b/app/Views/billing/opd_prescription_basic.php
@@ -314,48 +314,6 @@
                             value="<?= esc($patient_master[0]->abha_address ?? $patient_master[0]->abha ?? '') ?>"
                             placeholder="Enter ABHA Address">
                     </div>
-                    <div class="card mt-2 border-primary-subtle">
-                        <div class="card-header py-1"><strong>ABDM Sandbox Actions</strong></div>
-                        <div class="card-body p-2">
-                            <div class="mb-2">
-                                <label class="form-label mb-1 small">QR Payload (Scan &amp; Share)</label>
-                                <input type="text" class="form-control form-control-sm" id="abdm_qr_payload" placeholder="Paste scanned QR payload">
-                            </div>
-                            <div class="d-flex flex-wrap gap-1 mb-2">
-                                <button type="button" class="btn btn-outline-primary btn-sm" id="btn_abdm_scan_lookup">Scan Lookup</button>
-                                <button type="button" class="btn btn-outline-secondary btn-sm" id="btn_abdm_validate_abha">Validate ABHA</button>
-                            </div>
-
-                            <div class="row g-1 mb-2">
-                                <div class="col-6">
-                                    <input type="text" class="form-control form-control-sm" id="abdm_purpose_code" placeholder="Purpose (ex: CAREMGT)">
-                                </div>
-                                <div class="col-6">
-                                    <input type="datetime-local" class="form-control form-control-sm" id="abdm_consent_expires_at">
-                                </div>
-                            </div>
-                            <div class="d-flex flex-wrap gap-1 mb-2">
-                                <button type="button" class="btn btn-outline-success btn-sm" id="btn_abdm_consent_request">Request Consent</button>
-                                <button type="button" class="btn btn-outline-warning btn-sm" id="btn_abdm_share_fhir">Share FHIR</button>
-                            </div>
-
-                            <div class="mb-2">
-                                <label class="form-label mb-1 small">Consent Handle</label>
-                                <input type="text" class="form-control form-control-sm" id="abdm_consent_handle" placeholder="Auto-filled after consent request">
-                            </div>
-
-                            <div class="row g-1 mb-2">
-                                <div class="col-7">
-                                    <input type="number" min="1" class="form-control form-control-sm" id="abdm_claim_document_id" placeholder="Claim Document ID">
-                                </div>
-                                <div class="col-5">
-                                    <button type="button" class="btn btn-outline-dark btn-sm w-100" id="btn_abdm_claim_status">Claim Status</button>
-                                </div>
-                            </div>
-
-                            <div class="small text-muted" id="abdm_action_status">Ready</div>
-                        </div>
-                    </div>
                     <div><strong>OPD:</strong> <?= esc($opd_master[0]->opd_code ?? '') ?></div>
                     <div><strong>Date:</strong> <?= esc($opd_master[0]->apointment_date ?? '') ?></div>
                     <div><strong>Doctor:</strong> <?= esc($opd_master[0]->doc_name ?? '') ?></div>