Why Use Custom GPT with Odoo?
Managing tasks in Odoo like creating records checking statuses or logging activities - often involves repetitive steps. Users may have to switch between modules apply filters locate the right record open the form and then enter or update data. When these actions happen over and again the manual process adds up and becomes time-consuming.
A Custom GPT can help make this easier of digging through menus and screens users can simply speak in plain language. For example, they can say, “Draft a quotation, for Acme Corp for 10 units of SKU-100” or “Show invoices past due 30 days.” The GPT understands the request. Uses the right API Action to fetch, create or update records in Odoo.
This integration does not change how Odoo works. It doesn’t replace Odoo’s core systems. Business logic, workflows, access rights, data validations and record rules all stay exactly as they are. The Custom GPT simply acts as a front-end—like a voice or text assistant—that makes it faster and simpler to reach the same functions.
The goal is clear: make standard Odoo workflows faster and easier to access without changing how Odoo manages business operations.
What is Custom GPT?
Custom GPT is a customized version of ChatGPT that can be configured for a specific purpose using custom instructions, knowledge, capabilities, and Actions. It can be tailored to understand a particular business context and interact with external systems through APIs.
In this blog, we will configure a Custom GPT to work with Odoo and perform authorized operations through Odoo APIs. Now, let's see how to set up the Custom GPT and connect it with Odoo.
Before You Start
Before configuring the integration, make sure you have the following in place:
- ChatGPT Access: A ChatGPT plan that supports Custom GPT creation and configuration.
- Odoo Access: Access to the Odoo environment you want to connect with the Custom GPT.
- Required Permissions: An Odoo account with appropriate permissions to access the required information and perform authorized operations.
- Secure Connection: An Odoo system accessible through a secure HTTPS connection.
Configuring the Custom GPT
Before starting the configuration, make sure you have a ChatGPT Pro plan, which provides access to Custom GPT creation and configuration.
Open chatgpt.com in your browser. From the left panel, click GPTs to access the GPTs section, where you can create and configure your Custom GPT.

After clicking the Create button, the GPT Configuration screen will appear, as shown below:

Now, let’s understand each configuration field, such as Name, Description, Instructions, Conversation Starters, Knowledge, and Capabilities, one by one.
Name
Enter a suitable name for your Custom GPT. This name helps users identify the purpose of the GPT.
Description
Short description explaining that the GPT interacts with Odoo to retrieve information and perform authorized operations.
Instruction
- Define what the GPT does.
- Define how it should behave.
- Tell it when to ask for clarification.
- Define security restrictions.
- Prevent unauthorized or unsupported operations.
- Handle API failures appropriately.
Conversation Starters
This provides users with an easy way to understand how they can interact with the Custom GPT. They give an initial idea of the assistant’s capabilities and the types of Odoo-related tasks it can handle.

Knowledge
Knowledge lets us upload reference files to the Custom GPT so it can pull information from those documents when answering questions. These files can be API documentation, company policies, business process documents, user guides or internal instructions. This helps give the Custom GPT the context and allows it to answer questions based on trusted business information.
Knowledge is not the same, as Odoo data. Knowledge comes from files we upload. They are static. Don’t change often. Live Odoo data on the hand is fetched in real time through Actions or API integration. So one is. The other is dynamic.
Capabilities
Capabilities define the tools that a Custom GPT can use. Web Search can be turned on when the assistant must look up something on the internet. It is not needed for simple Odoo tasks. Image Generation is usually not needed for an Odoo business helper unless pictures are required. Code Interpreter and Data Analysis can help when users want calculations, data checks or short reports, from Odoo data. Capabilities remain the same.
Connecting Odoo Through Custom GPT Actions
This is the main integration section. First, click the Create Action button in the configuration screen to create an Action for connecting the Custom GPT with Odoo.

Authentication
For authentication, first generate an API Key in Odoo. This key will be used to authenticate requests between the Custom GPT and Odoo.

Enter the generated Odoo API Key here and select Bearer as the Authentication Type.

Security Best Practices
Security is an important consideration when connecting a Custom GPT with Odoo. Since the integration may access business information and perform authorized operations, it is important to control what the GPT can access and what actions it can perform. The following practices can help protect business data and maintain appropriate access:
- Use a Dedicated Odoo User: Create a separate Odoo user account for the Custom GPT instead of using a primary administrator account.
- Limit User Permissions: Give the account only the permissions required for the GPT’s intended tasks.
- Protect API Credentials: Keep API keys and authentication details confidential and do not share them through public or unsecured channels.
- Restrict Data Access: Allow the GPT to access only the Odoo information necessary for its assigned functions.
- Review Permissions Regularly: Periodically review the account’s access and update permissions when its responsibilities change.
- Disable Unnecessary Access: Remove permissions or disable the dedicated account when the integration is no longer required.
- Validate Important Actions: Review critical updates or changes made through the integration to ensure they are authorized and accurate.
Schema
The Schema defines how the Custom GPT should communicate with the Odoo API. It describes the API endpoints, required parameters, request structure and expected response format. This helps the GPT understand which Odoo operations are available what information must be sent and how to interpret the response.
For example, if an Odoo API provides an employee search operation the schema can define the employee's name as an input parameter. Specify the employee details that will be returned.

The Custom GPT can use different API Actions depending on the user's request.
For example, when a user asks “Show me the available information about employees,” GPT can select the /api/employees Action and retrieve the required data from Odoo.
Building the Odoo API Layer
In Odoo backend -
- Create API endpoints for the required operations.
- Connect the endpoints with the appropriate Odoo models.
- Retrieve Odoo records through the API.
- Create or update Odoo records as required.
- Validate incoming API requests.
- Return structured responses to the Custom GPT.
Code:
class OdooGPTController(http.Controller):
@http.route(
"/api/employees",
type="http",
auth="user",
methods=["GET"],
csrf=False
)
def get_employees(self):
// returns the employee
End-to-End Integration Flow
This example demonstrates how the Custom GPT and Odoo work together to handle a user request.
User:
"How many employees are in the Sales department?"
Flow:
User Request
↓
Custom GPT
↓
GPT identifies Employee API
↓
Odoo API
↓
Search employee records
↓
Odoo Response
↓
Custom GPT
↓
Natural-language Answer
The Custom GPT understands the user's request, selects the appropriate Odoo API Action, and sends the request to Odoo. Odoo processes the request and returns the result, which the GPT presents to the user in a natural-language response.
Practical Use Cases
The integration can be applied to various Odoo business operations. The following use cases demonstrate how users can interact with Odoo through Custom GPT.
Use Case 1 - Inventory Management
Inventory users may need to adjust stock quantities after a physical stock count. When multiple products have differences, users need to locate each product and update the quantities manually in Odoo.
With Custom GPT, users can provide the required adjustments in a natural-language request, and the GPT can send the changes to Odoo through an API Action.
User:
“Update Product A stock to 120 units and Product B stock to 75 units.”
Use Case 2 — Fetch Odoo Information
Sales teams may need to identify pending quotations or sales orders that require follow-up and update their status or expected dates. When there are many orders, manually searching and updating each record takes time.
With Custom GPT, a user can request the required records and ask GPT to perform the authorized updates directly in Odoo.
User:
“Find all quotations that have been pending for more than 7 days and update their expected closing date to next Friday.”
Use Case 3 — Knowledge-Based Business Information
The Custom GPT can use knowledge files to give business-related information in an organized way. Users can ask questions, about company processes, policies, guidelines or other uploaded business documents. The GPT can quickly. Summarize the right information without needing to search through the documents by hand. This makes it faster and easier to find what is needed.
User:
"What is the approval process for a new vendor?"
Security and Validation
Security is an important part of integrating AI with Odoo. When the API works with the authenticated Odoo user, Odoo's default access rights and record rules help ensure that users can only access data and perform operations they are permitted to use. Additional validations can be added in the controller to prevent unauthorized requests. This ensures that the AI follows Odoo's existing security rules rather than bypassing them.
Data Privacy
Protecting business data should remain a priority when using a Custom GPT with Odoo. Before connecting the systems, organizations should review their ChatGPT data and privacy settings and understand how information shared with the GPT is handled. It is also important to avoid exposing sensitive business information unnecessarily and to limit the data available to the integration based on business requirements. Regularly review the information the GPT can access and ensure that only authorized users can interact with it. For sensitive operations, businesses should establish clear internal guidelines on what information can be shared with the GPT and how the integration should be used.
Limitations and Important Considerations
AI-assisted interactions with Odoo can simplify everyday tasks, but businesses should consider a few limitations before relying on the integration for important operations:
- Verify Critical Information: Review important financial, inventory, or business information before making decisions based on AI responses.
- Configured Actions Only: The Custom GPT can perform only the operations that have been configured and authorized through the integration.
- Connection Issues: Slow Odoo responses or connectivity problems may affect the GPT’s ability to complete a request.
- Review Data Changes: Check important updates made through the integration to ensure they are accurate and authorized.
- Test Before Deployment: Test the integration thoroughly before using it with live business operations and data.
Benefits of the Integration
The integration makes routine Odoo operations simpler by reducing manual steps and providing a natural-language way to interact with business data.
- Less Manual Work: Reduces repetitive data entry and unnecessary navigation.
- Faster Access to Information: Users can ask questions and get relevant information directly.
- Better Productivity: Reduces the number of steps required for common operations.
- Fewer Manual Errors: Reduces errors caused by repetitive data entry and manual data handling.
- Natural-Language Interaction: Users can describe what they need instead of navigating through multiple Odoo menus.
- Automation: Allows GPT to trigger authorized Odoo operations through configured APIs.
- Real-Time Information: Retrieves current information directly from Odoo when the relevant API is called.
Conclusion
Integrating Custom GPT with Odoo gives users to more natural way to work with their business data than manually searching, copying and pasting information between Odoo and an AI assistant. Users can talk to Odoo through natural language requests.
When GPT Actions, Odoo APIs, authentication and access controls are set up correctly the AI can fetch data. Perform authorized tasks while respecting existing security rules. This turns Custom GPT into more than an AI assistant; it becomes a practical conversational interface for Odoo.
The same method can be applied to Odoo modules and business processes opening the door to automated reporting, smart assistance and more connected end-to-end workflows.
Frequently Asked Questions
What can a Custom GPT do with Odoo?
A Custom GPT can retrieve Odoo information, create or update authorized records, and answer business questions using configured Actions, APIs, and uploaded knowledge files, while following the applicable Odoo access permissions and business rules defined for the integration as configured.
Does integrating a Custom GPT change how Odoo works?
No. The integration does not replace Odoo’s core functionality. The Custom GPT acts as a conversational interface, while Odoo continues managing workflows, business rules, validations, permissions, and existing records according to configured processes and access controls without changing its operation.
Can the Custom GPT access all Odoo data?
No. Access depends on the permissions assigned to the authenticated Odoo user, and the operations configured for the integration. The GPT should only access information necessary for its intended business functions and authorized tasks within Odoo for its intended purpose.
Can a Custom GPT update records in Odoo?
Yes, if the required operations are configured and authorized. For example, users can request approved inventory or quotation updates, while Odoo’s permissions and configured validations continue governing those changes and ensuring operations remain within authorized business rules for the user.
Is Odoo data available to the Custom GPT in real time?
Live Odoo information can be retrieved when the relevant API Action is called. This differs from uploaded knowledge files, which provide static reference information and are not automatically synchronized with current Odoo data available during the request at the time.
What types of business information can a Custom GPT use?
A Custom GPT can work with information retrieved from Odoo and uploaded knowledge files, including employee details, inventory information, quotations, business processes, policies, guidelines, and other authorized business information relevant to the configured use cases that the organization makes available.