Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o

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1. Workflow Overview

How it works 1. Courier sends an invoice photo to WhatsApp → AI extracts all details via Google Vision OCR 2. Courier sends a payment photo (check, bank transfer, credit card voucher) → AI matches ...

Best for

Invoice Processing automation workflows
AI Chatbot automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.stickynote, n8n-nodes-base.if, n8n-nodes-base.code, n8n-nodes-base.httprequest, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.toolcode, @n8n/n8n-nodes-langchain.memorybufferwindow

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by achiya.

Original n8n.io source

1.1 Workflow description

Title: Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o
Workflow name: Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o

How it works

Courier sends an invoice photo to WhatsApp → AI extracts all details via Google Vision OCR
Courier sends a payment photo (check, bank transfer, credit card voucher) → AI matches it to the invoice
AI presents a summary and asks for confirmation
Once approved — receipt is created in Rivhit, invoice is closed, and the PDF is sent back to WhatsApp

Supports cash, checks, credit cards, bank transfers, and split payments. Includes automatic customer lookup by tax ID and Israeli bank code recognition.

Set up steps

Takes about 10 minutes:

Set up a WAHA instance and point its webhook to this workflow
Add your Google Cloud Vision API key to the HTTP Request node
Add your Rivhit API token to the "api key" Set node
Replace the WhatsApp group ID in the Filter node with yours
Connect your OpenAI credentials
Activate and start sending photos!

See the sticky notes inside the workflow for detailed instructions.

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 2 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 3 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 4 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 5 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 6 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 7 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 8 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 9 - Is there a picture or not?

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 10 - Preparing a message

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 11 - Extracting text from images

Type / Role: n8n-nodes-base.httpRequest - httpRequest
Config choices: Version 4.4

Block 12 - api key

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.4

Block 13 - AI Agent

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 3.1

Block 14 - rivhit_api

Type / Role: @n8n/n8n-nodes-langchain.toolCode - toolCode
Config choices: Version 1.3

Block 15 - Simple Memory

Type / Role: @n8n/n8n-nodes-langchain.memoryBufferWindow - memoryBufferWindow
Config choices: Version 1.3

Block 16 - OpenAI Chat Model

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenAi - lmChatOpenAi
Config choices: Version 1.3

Block 17 - Separation between the message and document link

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 18 - Only if there is an attachment

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2.3

Block 19 - Send a file

Type / Role: @devlikeapro/n8n-nodes-waha.WAHA - WAHA
Config choices: Version 202502

Block 20 - Send a text message

Type / Role: n8n-nodes-waha.WAHA - WAHA
Config choices: Version 202411

Block 21 - Start Typing

Type / Role: @devlikeapro/n8n-nodes-waha.WAHA - WAHA
Config choices: Version 202502

Block 22 - Only if it's from the bot's group

Type / Role: n8n-nodes-base.filter - filter
Config choices: Version 2.3

Block 23 - Webhook

Type / Role: n8n-nodes-base.webhook - webhook
Config choices: Version 2.1

3. Summary Table

Workflow	Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o
Complexity	advanced
Nodes	23
Categories	Invoice Processing, AI Chatbot
Author	achiya
Published	15 Mar 2026

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/14061/14061.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Invoice Processing workflows AI Chatbot workflows

Frequently asked questions

What does Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Invoice Processing, AI Chatbot use case.

achiya

2 workflows

Nodes

n8n-nodes-base.stickynote n8n-nodes-base.if n8n-nodes-base.code n8n-nodes-base.httprequest n8n-nodes-base.set @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.toolcode @n8n/n8n-nodes-langchain.memorybufferwindow

Complexity

advanced

Published 15 Mar 2026

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/14061/14061.json

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Issue Rivhit receipts from WhatsApp photos using Google Vision and GPT-4o

Workflow preview

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

How it works

Set up steps

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Sticky Note

Block 2 - Sticky Note1

Block 3 - Sticky Note2

Block 4 - Sticky Note3

Block 5 - Sticky Note4

Block 6 - Sticky Note5

Block 7 - Sticky Note6

Block 8 - Sticky Note7

Block 9 - Is there a picture or not?

Block 10 - Preparing a message

Block 11 - Extracting text from images

Block 12 - api key

Block 13 - AI Agent

Block 14 - rivhit_api

Block 15 - Simple Memory

Block 16 - OpenAI Chat Model

Block 17 - Separation between the message and document link

Block 18 - Only if there is an attachment

Block 19 - Send a file

Block 20 - Send a text message

Block 21 - Start Typing

Block 22 - Only if it's from the bot's group

Block 23 - Webhook

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions