Latenode
OpenAI GPT Assistants
Google slides
PandaDoc

Automatically create & deliver professional business proposals

Latenode's AI premium proposal generator automates the creation of personalized business proposals. It uses OpenAI to generate proposal content, Google Slides for design and layout, and PandaDoc for electronic signature and document management.

The system transforms basic sales form data into professional proposals that can be delivered to prospects in under 30 seconds, streamlining the proposal process and improving close rates. The advanced version includes built-in payment processing, enabling immediate signature and payment collection.

Updated Apr 2, 2026Est. run: 19sEst. cost: $0.0012
How Latenode estimates time and cost

Latenode bills workflow runs in credits: 1 credit = 30 seconds of processing. Minimum charge per run depends on your plan. Plug-and-Play (PnP) AI nodes are billed separately—each PnP token is $1 USD, charged pay-as-you-go at vendor cost plus a small processing fee, with no API keys required.

Full pricing — how credits work →
AI agents & chatbots

Workflow preview

What this template does

  • Automates the creation of personalized business proposals
  • Generates proposal content using OpenAI
  • Designs and layouts proposals in Google Slides
  • Manages electronic signatures and document flow with PandaDoc
  • Enables immediate signature and payment collection in advanced version

How it works

1
Trigger

Custom Proposal Form

Capture prospect details in a custom form.

2
AI

Generate Proposal Content

Use GPT-4 to automatically create a draft proposal based on the prospect details.

3
Action

Design Proposal Slides

Populate a Google Slides template with the generated proposal content.

4
Action

Finalize Proposal

Add electronic signature capabilities and optional payment processing through PandaDoc.

Setup guide

1

Configure OpenAI Credentials

Add your OpenAI API key in the Latenode Credentials panel. This will allow the OpenAI node to generate proposal content using GPT-4.

2

Set up Google Slides Template

Create a Google Slides presentation template in your Google Drive, then configure the Google Slides node in the Latenode builder to use this template. This will allow the system to populate the template with the generated proposal content.

3

Configure PandaDoc Integration

Add your PandaDoc API credentials in the Latenode Credentials panel. This will enable the PandaDoc node to create a personalized proposal document with electronic signature and payment capabilities.

4

Design Proposal Form

In the Latenode builder, add a custom form node with fields for First Name, Last Name, Company Name, Email, Website, Problem, Solution, Scope, Cost, and How soon?. This form will capture the necessary data to generate the personalized proposal.

5

Map Form Data to Proposal Generation

In the Latenode builder, connect the form node to the OpenAI node and map the form field data to the appropriate prompting inputs. This will ensure the generated proposal content is tailored to each prospect.

Requirements

OpenAI API key with appropriate permissions to generate proposal content
Google Slides API access and necessary permissions to create and edit presentations
PandaDoc API key and integration setup to manage electronic signatures and document workflows
Ability to connect the Latenode workspace to the required APIs (OpenAI, Google Slides, PandaDoc)

FAQ

Common questions about this template

Each run uses credits on your Latenode plan. We charge for processing time (1 credit = 30 seconds). Your actual cost depends on your plan and how long the run takes. See pricing plans for plans and how credits work.
Contact support →

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