diff --git a/packages/frinx-dashboard/src/api/uniflow/uniflow-api.ts b/packages/frinx-dashboard/src/api/uniflow/uniflow-api.ts
index add80ba3c..b31a6f3de 100644
--- a/packages/frinx-dashboard/src/api/uniflow/uniflow-api.ts
+++ b/packages/frinx-dashboard/src/api/uniflow/uniflow-api.ts
@@ -235,3 +235,8 @@ export async function deleteWorkflowInstance(workflowId: string): Promise<string
 
   return workflowIdRes as string;
 }
+
+export async function getExternalStorage(path: string): Promise<Record<string, string>> {
+  const data = await sendGetRequest(`/external/postgres/${path}`);
+  return data as Record<string, string>;
+}
diff --git a/packages/frinx-dashboard/src/uniflow-app.tsx b/packages/frinx-dashboard/src/uniflow-app.tsx
index c85ad8f29..f883d1649 100644
--- a/packages/frinx-dashboard/src/uniflow-app.tsx
+++ b/packages/frinx-dashboard/src/uniflow-app.tsx
@@ -29,6 +29,7 @@ import {
   deleteSchedule,
   getSchedule,
   registerSchedule,
+  getExternalStorage,
 } from './api/uniflow/uniflow-api';
 
 const callbacks = {
@@ -58,6 +59,7 @@ const callbacks = {
   deleteSchedule,
   getSchedule,
   registerSchedule,
+  getExternalStorage,
 };
 
 type UniflowComponents = Omit<typeof import('@frinx/workflow-ui'), 'getUniflowApiProvider'> & {
diff --git a/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/external-storage-modal.tsx b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/external-storage-modal.tsx
new file mode 100644
index 000000000..9aef31b47
--- /dev/null
+++ b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/external-storage-modal.tsx
@@ -0,0 +1,45 @@
+// @flow
+import {
+  Modal,
+  ModalBody,
+  ModalCloseButton,
+  ModalContent,
+  ModalHeader,
+  ModalOverlay,
+  Textarea,
+} from '@chakra-ui/react';
+import React, { VoidFunctionComponent, useState, useEffect } from 'react';
+import callbackUtils from '../../../utils/callback-utils';
+
+type Props = {
+  storagePath: string;
+  isOpen: boolean;
+  onClose: () => void;
+  title: string;
+};
+
+const ExternalStorageModal: VoidFunctionComponent<Props> = ({ isOpen, onClose, storagePath, title }) => {
+  const [payload, setPayload] = useState<string | null>(null);
+
+  useEffect(() => {
+    const getExternalStorage = callbackUtils.getExternalStorageCallback();
+    getExternalStorage(storagePath).then((res) => {
+      setPayload(JSON.stringify(res, null, 2));
+    });
+  }, [storagePath]);
+
+  return (
+    <Modal size="5xl" isOpen={isOpen} onClose={onClose}>
+      <ModalOverlay />
+      <ModalContent>
+        <ModalHeader>{title}</ModalHeader>
+        <ModalCloseButton />
+        <ModalBody>
+          {payload != null && <Textarea value={payload} isReadOnly={true} id="storage" variant="filled" minH={450} />}
+        </ModalBody>
+      </ModalContent>
+    </Modal>
+  );
+};
+
+export default ExternalStorageModal;
diff --git a/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/input-output-tab.tsx b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/input-output-tab.tsx
index 80c12c6aa..17af85a70 100644
--- a/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/input-output-tab.tsx
+++ b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail-tabs/input-output-tab.tsx
@@ -1,6 +1,7 @@
-import React, { FC } from 'react';
+import React, { VoidFunctionComponent, useState } from 'react';
 import { IconButton, Button, SimpleGrid, Box, Stack, Textarea, Text } from '@chakra-ui/react';
 import { CopyIcon } from '@chakra-ui/icons';
+import ExternalStorageModal from './external-storage-modal';
 
 type Props = {
   isEscaped: boolean;
@@ -9,48 +10,98 @@ type Props = {
   copyToClipBoard: (value: Record<string, string>) => void;
   getUnescapedJSON: (value: Record<string, string>) => string;
   onEscapeChange: (isEscaped: boolean) => void;
+  externalInputPayloadStoragePath?: string;
+  externalOutputPayloadStoragePath?: string;
 };
 
-const InputOutputTab: FC<Props> = ({ isEscaped, input, output, getUnescapedJSON, copyToClipBoard, onEscapeChange }) => {
+const InputOutputTab: VoidFunctionComponent<Props> = ({
+  isEscaped,
+  input,
+  output,
+  getUnescapedJSON,
+  copyToClipBoard,
+  onEscapeChange,
+  externalInputPayloadStoragePath,
+  externalOutputPayloadStoragePath,
+}) => {
+  const [payload, setPayload] = useState<{ type: 'Input' | 'Output'; data: string } | null>(null);
   return (
-    <SimpleGrid columns={2} spacing={4}>
-      <Box>
-        <Stack direction="row" spacing={2} align="center" mb={2}>
-          <Text as="b" fontSize="sm">
-            Workflow Input
-          </Text>
-          <IconButton
-            aria-label="copy"
-            icon={<CopyIcon />}
-            size="sm"
-            className="clp"
-            onClick={() => copyToClipBoard(input)}
+    <>
+      {payload && (
+        <ExternalStorageModal
+          title={payload.type}
+          isOpen={payload != null}
+          onClose={() => {
+            setPayload(null);
+          }}
+          storagePath={payload.data}
+        />
+      )}
+      <SimpleGrid columns={2} spacing={4}>
+        <Box>
+          <Stack direction="row" spacing={2} align="center" mb={2}>
+            <Text as="b" fontSize="sm">
+              Workflow Input
+            </Text>
+            <IconButton
+              aria-label="copy"
+              icon={<CopyIcon />}
+              size="sm"
+              className="clp"
+              onClick={() => copyToClipBoard(input)}
+            />
+            <Button size="sm" onClick={() => onEscapeChange(!isEscaped)}>
+              {isEscaped ? 'Unescape' : 'Escape'}
+            </Button>
+            {externalInputPayloadStoragePath && (
+              <Button
+                size="sm"
+                onClick={() => {
+                  setPayload({ type: 'Input', data: externalInputPayloadStoragePath });
+                }}
+              >
+                External storage input
+              </Button>
+            )}
+          </Stack>
+          <Textarea value={getUnescapedJSON(input)} isReadOnly={true} id="workflowInput" variant="filled" minH={200} />
+        </Box>
+        <Box>
+          <Stack direction="row" spacing={2} align="center" mb={2}>
+            <Text as="b" fontSize="sm">
+              Workflow Output
+            </Text>
+            <IconButton
+              aria-label="copy"
+              icon={<CopyIcon />}
+              size="sm"
+              className="clp"
+              onClick={() => copyToClipBoard(output)}
+            />
+            <Button size="sm" onClick={() => onEscapeChange(!isEscaped)}>
+              {isEscaped ? 'Unescape' : 'Escape'}
+            </Button>
+            {externalOutputPayloadStoragePath && (
+              <Button
+                size="sm"
+                onClick={() => {
+                  setPayload({ type: 'Output', data: externalOutputPayloadStoragePath });
+                }}
+              >
+                External storage output
+              </Button>
+            )}
+          </Stack>
+          <Textarea
+            value={getUnescapedJSON(output)}
+            isReadOnly={true}
+            id="workflowOutput"
+            variant="filled"
+            minH={200}
           />
-          <Button size="sm" onClick={() => onEscapeChange(!isEscaped)}>
-            {isEscaped ? 'Unescape' : 'Escape'}
-          </Button>
-        </Stack>
-        <Textarea value={getUnescapedJSON(input)} isReadOnly={true} id="workflowInput" variant="filled" minH={200} />
-      </Box>
-      <Box>
-        <Stack direction="row" spacing={2} align="center" mb={2}>
-          <Text as="b" fontSize="sm">
-            Workflow Output
-          </Text>
-          <IconButton
-            aria-label="copy"
-            icon={<CopyIcon />}
-            size="sm"
-            className="clp"
-            onClick={() => copyToClipBoard(output)}
-          />
-          <Button size="sm" onClick={() => onEscapeChange(!isEscaped)}>
-            {isEscaped ? 'Unescape' : 'Escape'}
-          </Button>
-        </Stack>
-        <Textarea value={getUnescapedJSON(output)} isReadOnly={true} id="workflowOutput" variant="filled" minH={200} />
-      </Box>
-    </SimpleGrid>
+        </Box>
+      </SimpleGrid>
+    </>
   );
 };
 
diff --git a/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail.tsx b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail.tsx
index 1743f1957..38841515e 100644
--- a/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail.tsx
+++ b/packages/frinx-workflow-ui/src/pages/executed-workflow-detail/executed-workflow-detail.tsx
@@ -80,6 +80,8 @@ export type ExecutedWorkflowDetailResult = {
   endTime: Date | number | string;
   input: Record<string, string>;
   output: Record<string, string>;
+  externalInputPayloadStoragePath?: string;
+  externalOutputPayloadStoragePath?: string;
 };
 
 const DetailsModal: FC<Props> = ({ workflowId, onWorkflowIdClick, onExecutedOperation }) => {
@@ -215,6 +217,8 @@ const DetailsModal: FC<Props> = ({ workflowId, onWorkflowIdClick, onExecutedOper
                   output={result.output}
                   onEscapeChange={() => setIsEscaped(!isEscaped)}
                   getUnescapedJSON={getUnescapedJSON}
+                  externalInputPayloadStoragePath={details.result?.externalInputPayloadStoragePath}
+                  externalOutputPayloadStoragePath={details.result?.externalOutputPayloadStoragePath}
                 />
               )}
             </TabPanel>
diff --git a/packages/frinx-workflow-ui/src/types/task.ts b/packages/frinx-workflow-ui/src/types/task.ts
index 2d63ba99c..d02db100e 100644
--- a/packages/frinx-workflow-ui/src/types/task.ts
+++ b/packages/frinx-workflow-ui/src/types/task.ts
@@ -18,4 +18,6 @@ export type Task = {
   subWorkflowId: string;
   startTime: number;
   endTime: number;
+  externalOutputPayloadStoragePath?: string;
+  externalInputPayloadStoragePath?: string;
 };
diff --git a/packages/frinx-workflow-ui/src/utils/callback-utils.ts b/packages/frinx-workflow-ui/src/utils/callback-utils.ts
index 3f148a4f6..e7552b74e 100644
--- a/packages/frinx-workflow-ui/src/utils/callback-utils.ts
+++ b/packages/frinx-workflow-ui/src/utils/callback-utils.ts
@@ -50,6 +50,7 @@ export type Callbacks = {
     version: string,
     schedule: Partial<ScheduledWorkflow>,
   ) => Promise<{ message: string }>;
+  getExternalStorage: (path: string) => Promise<Record<string, string>>;
 };
 
 class CallbackUtils {
@@ -87,6 +88,7 @@ class CallbackUtils {
   private registerSchedule:
     | ((name: string, version: string, schedule: Partial<ScheduledWorkflow>) => Promise<{ message: string }>)
     | null = null;
+  private getExternalStorage: (path: string) => Promise<Record<string, string>>;
 
   setCallbacks(callbacks: Callbacks) {
     if (this.getWorkflows == null) {
@@ -192,6 +194,9 @@ class CallbackUtils {
     if (this.registerSchedule == null) {
       this.registerSchedule = callbacks.registerSchedule;
     }
+    if (this.getExternalStorage == null) {
+      this.getExternalStorage = callbacks.getExternalStorage;
+    }
   }
 
   getWorkflowsCallback() {
@@ -375,6 +380,13 @@ class CallbackUtils {
     }
     return this.registerSchedule;
   }
+
+  getExternalStorageCallback() {
+    if (this.getExternalStorage == null) {
+      throw new Error('getExternalStorage is missing');
+    }
+    return this.getExternalStorage;
+  }
 }
 
 export default new CallbackUtils();