1.Introduction
This is the manual for the integration between Opencart and Twinfield.
This integration ensures that orders from the Opencart webshop are automatically processed to draft entries or invoices in Twinfield. Because the orders arrive directly in the retailer's accounting system, this saves time on the financial administration.
Please pay special attention to the following
- This integration is a financial integration. It is not a logistics integration. It is not suitable for updating customers in Twinfield, printing packing slips, or synchronizing products/inventory.
- This integration does not replace the work of an accountant. It saves time because you no longer have to retype documents. The accountant is still needed for advice, expertise, and control.
Tip: Other customers using this integration found the tips in the FAQ for Opencart and in the FAQ for Twinfield.
Install integration
Installing the integration starts with signing up for a trial period, via our integrations page. After registration, you will receive an email containing an installation URL and login details. With this installation URL, you start the installation of the integration.
The installation is complete when both connection dots are green, and the settings in the Configuration tab have been entered and saved.
There is a trial period of 30 days.
If you want to install another integration, you can do so in the same way. Make sure you are logged out of the integration dashboard and preferably start the new installation in an incognito browser.
Installing the integration starts with signing up for a trial period, via our integrations page. After registration, you will receive an email containing an installation URL and login details. With this installation URL, you start the installation of the integration.
The installation is complete when both connection dots are green, and the settings in the Configuration tab have been entered and saved.
There is a trial period of 30 days.
If you want to install another integration, you can do so in the same way. Make sure you are logged out of the integration dashboard and preferably start the new installation in an incognito browser.
Cancel integration
At the end of the trial or subscription period, the integration will not be automatically renewed. You will receive an offer for a one-year subscription or renewal by email at the end of this period. You can confirm the renewal by using the payment link in that email. Do you want to terminate the integration in the meantime? This can be done via the dashboard, tab Profile>>Cancel integration.
Are you switching to another web shop/accounting system and do you want to re-establish a connection? In this faq we explain how to do this.
We advise you to revoke the API key and remove the extension from your webshop when uninstalling the integration.
At the end of the trial or subscription period, the integration will not be automatically renewed. You will receive an offer for a one-year subscription or renewal by email at the end of this period. You can confirm the renewal by using the payment link in that email. Do you want to terminate the integration in the meantime? This can be done via the dashboard, tab Profile>>Cancel integration.
Are you switching to another web shop/accounting system and do you want to re-establish a connection? In this faq we explain how to do this.
We advise you to revoke the API key and remove the extension from your webshop when uninstalling the integration.
2.How the integration works
A order from the Opencart webshop can be processed to Twinfield as a Twinfield draft entry or invoice. The option draft entry is default and is used most often. The option invoices can be requested from us. For the option invoices you need the paid invoice module, see also the FAQ.
New orders from your webshop are retrieved from the webshop at least once per hour. The status of the order is reviewed, and if the order is allowed to be processed, this will occur. If the orders are not yet allowed to be processed, they are checked every night to see if the status has changed and the order can be processed.
Read more How the integration works .... Read less How the integration works ....
New orders from your webshop are retrieved from the webshop at least once per hour. The status of the order is reviewed, and if the order is allowed to be processed, this will occur. If the orders are not yet allowed to be processed, they are checked every night to see if the status has changed and the order can be processed.
Read more How the integration works .... Read less How the integration works ....
Pre-check orders
At the start of processing an order, we perform a number of checks on the Opencart order:
At the start of processing an order, we perform a number of checks on the Opencart order:
- It is checked whether the total of the Opencart order is equal to the sum of the amounts in the order lines plus the shipping cost amount.
- If the order is an ICP order, the VAT number is checked.
- It is checked whether a corresponding VAT code exists in Twinfield for the VAT in each line.
- It is checked whether the order has not already been processed.
Processing order
Processing a Opencart order to Twinfield takes place in two steps:
Processing a Opencart order to Twinfield takes place in two steps:
- It is checked if the customer already exists in Twinfield. If not, the customer is created. Matching is based on the email address.
- The Twinfield transaction (draft entry, invoice) is created and processed.
Post-check
After the order has been forwarded and a success message from Twinfield has been received, the order is marked as handled. The Opencart order appears at the Reporting tab on the dashboard.
If Twinfield returns an error while processing the order, the order appears in the Errors tab on the dashboard. Via the yellow button More info more information about the problem can be found. Via the red button Report problem can the order with all necessary information easily be submitted to us after you have tried to resolve the problem yourself. If the problem is solved, in some cases the orders can be processed again with the blue Process button.
Data
Information about the data that is processed can be found in the section Day-to-day: To Twinfield later in the manual.
After the order has been forwarded and a success message from Twinfield has been received, the order is marked as handled. The Opencart order appears at the Reporting tab on the dashboard.
If Twinfield returns an error while processing the order, the order appears in the Errors tab on the dashboard. Via the yellow button More info more information about the problem can be found. Via the red button Report problem can the order with all necessary information easily be submitted to us after you have tried to resolve the problem yourself. If the problem is solved, in some cases the orders can be processed again with the blue Process button.
Data
Information about the data that is processed can be found in the section Day-to-day: To Twinfield later in the manual.
3.Required: OpenCart Secret key
The integration uses an OpenCart module. You can download this module here:
- cloudinvoiceopencart2.3.zip (OpenCart version 2.3)
- cloudinvoiceopencart3.zip (OpenCart version 3)
You install the extension on your webshop via FTP. You will see the Settings cloudinvoice platform module appear under Modules in your administration panel.
Read more Required Opencart ....
Read less Required Opencart ....
Click on Install to install the module and then on Edit to configure the connection. The license key is the key you received in the registration email. You create the API key to read orders and tax rates from OpenCart yourself. You can think of this API key as a kind of password. Just like with regular passwords, a complex password means you are protecting your data even more. We therefore advise you to enter an API key with a length of at least 15, consisting of numbers, letters, uppercase letters, and the punctuation marks !, *, @, #, (, ) and =. Compose your API key carefully. A good API key makes the connection much more secure. The maximum length of the API key is 64.
4.Preparation Twinfield
To connect with Twinfield, your own username/password is required to log in. The connection must be established using this username/password.
Read more Preparation Twinfield....
Read less Preparation Twinfield....
When using an accountancy username/password, the integration gains access to all records under the accountant's responsibility. This is highly undesirable. The consequence may be that the integration posts to the wrong record. Additionally, the integration has access to all records covered by the accountancy license. This is undesirable from a security perspective and is contrary to GDPR regulations.
For more information, see: FAQ.
5.Installation
After installation, check using this FAQ, whether the integration works.
Installing the integration starts with signing up for a trial period, via our integrations page. After registering, you'll receive an email with an installation URL and login details. Use this installation URL to start the integration installation.
Activating the integration consists of three steps:
1. Establishing the connection with the OpenCart webshop. Through this step, you authorize the integration to read the data from your webshop.
2. Establishing the connection with Twinfield. This authorizes the integration to write transactions to your Twinfield administration and read information.
3. Configuring additional data, such as the VAT settings.
Before the integration can be used, the terms and conditions must first be accepted. The terms and conditions are based on the general ICT Terms and Conditions (industry organization) and the general GDPR guidelines. We also need a name, email address, and the country of the webshop. 
Authentication OpenCart webshop:
Authentication with your OpenCart webshop is done via the API key you created in a previous section. Click the red Connect button next to OpenCart and enter the API key in the popup window. If the connection is correctly established, the indicator will turn green. If the connection is not established, check that the API key has a maximum length of 64 and that the license key was not accidentally entered.
Authentication with your OpenCart webshop is done via the API key you created in a previous section. Click the red Connect button next to OpenCart and enter the API key in the popup window. If the connection is correctly established, the indicator will turn green. If the connection is not established, check that the API key has a maximum length of 64 and that the license key was not accidentally entered.
Twinfield connection
The connection with Twinfield is handled via OAuth. Ensure you are logged out of Twinfield before starting the connection. Now click the red Connect button. A login screen for your Twinfield account will automatically appear. Once you log in, you will see a screen asking if you allow the connection. If you confirm this, the connection with Twinfield will be established.
If you want to re-establish the connection at a later time - for example because you want to use a different one - you can do so by clicking the Connect button.
Administration and debtors account
It is important that after establishing the connection with Twinfield, you first set the administration code of your Twinfield administration. You can also change the debtors dimension. The default in Twinfield is a debtors dimension 1300.
It is important that after establishing the connection with Twinfield, you first set the administration code of your Twinfield administration. You can also change the debtors dimension. The default in Twinfield is a debtors dimension 1300.
Configure VAT rates and general ledger accounts
When configuring the VAT rates and general ledger accounts, a link is created between the VAT rates in webshop and the VAT codes and revenue accounts in Twinfield. You can always make changes by clicking the blue 'Edit' button and selecting an option from the drop-down menus.
By default, all EU countries are shown in the list. You only need to configure the countries you sell to, and - if applicable - ICP and International.
The integration shows the standard VAT rates for Europe. You can adjust the VAT percentage with which you sell - left column. For example: By default, sales to Germany are set to 21%, but if you sell in the webshop with 19%, you can adjust that in the left column. Intra-Community (ICP) and international deliveries
The Intra-Community supplies / ICP option is intended for business-to-business deliveries within the EU. These sales are invoiced with 0% VAT. A VAT number from the customer is required. The International option applies to deliveries outside the EU. For these sales, the integration expects 0% VAT; otherwise, the sales cannot be processed. Separate VAT codes and general ledger accounts can be configured for both ICP and international deliveries.
Once the VAT settings have been configured and saved, you will always see the selected VAT rates. If you want to start over, you can use the grey 'Remove VAT settings' button. Your current settings will then be deleted and you can begin again.
When configuring the VAT rates and general ledger accounts, a link is created between the VAT rates in webshop and the VAT codes and revenue accounts in Twinfield. You can always make changes by clicking the blue 'Edit' button and selecting an option from the drop-down menus.
By default, all EU countries are shown in the list. You only need to configure the countries you sell to, and - if applicable - ICP and International.
The integration shows the standard VAT rates for Europe. You can adjust the VAT percentage with which you sell - left column. For example: By default, sales to Germany are set to 21%, but if you sell in the webshop with 19%, you can adjust that in the left column. Intra-Community (ICP) and international deliveries
The Intra-Community supplies / ICP option is intended for business-to-business deliveries within the EU. These sales are invoiced with 0% VAT. A VAT number from the customer is required. The International option applies to deliveries outside the EU. For these sales, the integration expects 0% VAT; otherwise, the sales cannot be processed. Separate VAT codes and general ledger accounts can be configured for both ICP and international deliveries.
Once the VAT settings have been configured and saved, you will always see the selected VAT rates. If you want to start over, you can use the grey 'Remove VAT settings' button. Your current settings will then be deleted and you can begin again.
Configure payment methods
When processing orders, a link can be established for each payment method in with a fixed debtor. Orders with a payment method from the list are then always posted under this debtor. In that case, no new debtors are created.
Note: It is not possible to set fixed debtors for ICP orders. For an ICP order, a valid VAT number must be transmitted. Therefore, a debtor will always be created in Twinfield for an ICP order.
The list of debtors contains the Twinfield debtors with the specific substring WWF_. See this faq for more information, if the list is empty.
When processing orders, a link can be established for each payment method in with a fixed debtor. Orders with a payment method from the list are then always posted under this debtor. In that case, no new debtors are created.
Note: It is not possible to set fixed debtors for ICP orders. For an ICP order, a valid VAT number must be transmitted. Therefore, a debtor will always be created in Twinfield for an ICP order.
The list of debtors contains the Twinfield debtors with the specific substring WWF_. See this faq for more information, if the list is empty.
6.Day-to-day: From OpenCart
In this section, we show how we retrieve the orders from the webshop.
Processing schedule: New orders from your webshop are retrieved at least once per hour. In addition, every night the orders that were previously retrieved and not yet forwarded to your accounting system are reviewed. An order is processed depending on the status of that order. You can use the dashboard, tab Configuration, set at which statuses orders should be processed.
Once an order has been processed, it cannot be processed again. Any order changed in the webshop after it has been processed will not be updated in Twinfield.
Once an order has been processed, it cannot be processed again. Any order changed in the webshop after it has been processed will not be updated in Twinfield.
VAT calculation: The VAT setup of OpenCart is complex and the work of specialists. For OpenCart VAT, the geozone IDs, tax rules, and tax rates must be correctly configured, especially if you deliver to multiple countries. Unfortunately, we do not provide support for the VAT setup of the OpenCart webshop.
7.Day-to-day: To Twinfield
Create draft entries
For orders in Opencart, draft entries or invoices can be created in Twinfield. The option draft entry is default and is used most often. The option invoices can be requested from us. For the invoices option, you need the paid invoice module, see also the FAQ. If you are in doubt between draft entries (financial transactions) or invoices, we recommend draft entries / transactions.
For orders in Opencart, draft entries or invoices can be created in Twinfield. The option draft entry is default and is used most often. The option invoices can be requested from us. For the invoices option, you need the paid invoice module, see also the FAQ. If you are in doubt between draft entries (financial transactions) or invoices, we recommend draft entries / transactions.
Create debtors
When processing customer information, it is first checked whether the customer has been processed before. If so, this Twinfield debtor is used as the debtor for the Twinfield transaction. If the customer is not yet known, they are added to Twinfield. Matching is based on email address.
Please note: The integration only creates debtors. The integration does not modify debtors.
Automatically sending invoices
The integration cannot automatically have Twinfield invoices or draft entries sent from Twinfield.
The integration cannot automatically have Twinfield invoices or draft entries sent from Twinfield.
Field-level specification Twinfield
Field-level specification of the Twinfield draft entry. +-
| Name | Example | Note | |
| @attributes | |||
| destiny | temporary | ||
| raisewarning | true | ||
| header | |||
| code | VRK | ||
| office | 300333 | ||
| invoicenumber | 5869 | order number | |
| date | 20230203 | order date | |
| Currency | EUR | Default, variable on request. | |
| Totalline | |||
| type | total | ||
| id | 4 | debtor id | |
| dim1 | 1600 | Debtor dimension | |
| dim2 | 4539 | Debtor dimension | |
| debitcredit | debit | ||
| value | 82.20 | Total price Incl. VAT | |
| basevalue | 82.20 | Total price Incl. VAT | |
| description | 4121 | Description: order number, or invoice number - this cannot be adjusted. | |
| Detaillines | |||
| @attributes | |||
| type | detail | ||
| id | 5 | ||
| dim1 | 2000 | Debtor dimension | |
| debitcredit | credit | ||
| basevalue | 33.47 | Line price Excl. VAT | |
| value | 33.47 | Line price Excl. VAT | |
| description | 24 pcs Prof. drawing paper. | Product description, max length 35. | |
| vatvalue | 7.03 | VAT amount | |
| vatcode | VH | VAT code | |
| Cost center | 1 default cost center per integration. | ||
| ICP | If it is an ICP entry: | ||
| Performancetype | goods | ||
| Performancecountry | [isocountry] | Country of delivery | |
| Performancevatnumber | [vatnr] | VAT number | |
| In the VAT amounts, any rounding difference is processed if the rounding difference is at most 5 cents. | |||
Field-level specification of the Twinfield invoice. +-
| Name | Example | Note |
| header | ||
| office | KJ903932 | |
| invoicetype | INVOICE | This cannot be adjusted. |
| invoicedate | 20230308 | order date |
| headertext | Order 3234002342 |
If the invoice number is equal to the order number: Order order number Otherwise Invoice invoice number. |
| customer | 9023 | Customer code |
| currency | EUR | Default, variable on request. |
| status | draft | |
| Payment method | Bank | |
| Detailline | ||
| @attributes | ||
| id | 4 | |
| article | 0 | |
| description | 70 x 70 painter's canvas | Description |
| quantity | 9 | quantity |
| units | 1 | |
| unitspriceexcl | 21.50 | unit price excl. VAT |
| dim1 | 3456 | Ledger account |
| vatcode | VH | VAT code |
Field-level specification of the Twinfield customer. +-
| Name | Example | Note |
| name | [name] | |
| website | ||
| Cocnumber | [coc] | |
| VATnumber | [VATnr] | |
| Address | ||
| contact | [firstname][lastname] | |
| Country | [isocountry] | |
| City | [city] | |
| Postal code | [zipcode] | |
| Phone number | [telnr] | |
| [email] | not longer than 200 characters. | |
8.Support
We believe it is important that you as online retailer have direct access to information about the integration whenever you want. That is why every customer has a personal dashboard.
Read more Support .... Read less Support ....
Read more Support .... Read less Support ....
Explanation tabs dashboard
On the Dashboard >> Report you can see which orders from your Opencart webshop, and when, have been transferred to Twinfield.At Dashboard >> Errors you can see which orders have not been processed. Via the blue Process button you can (re)submit the order. Via the red Report problem button you can create a ticket with us.
At Dashboard >> Open the orders are listed that have not yet been processed because they do not yet have the correct status in the webshop. Every night jobs run to review the status again and still process the order.
At Dashboard >> Configuration the settings of your integration are listed. You can adjust the settings there.
At Dashboard >> Profile invoices are available for download. You can also specify an additional email address here for sending emails and stop the integration.
What if orders are missing in Twinfield
If orders are missing in Twinfield we recommend following the steps below:- Log in to the dashboard: https://uwkoppeling.webwinkelfacturen.nl. The username and password are included in the registration email.
- Go to the Errors tab and check if order is there. You may need to adjust the search period if the
order is from a previous month. If you find order in this overview:
- Check the error code and verify whether you can resolve it yourself.
- If yes resolve the issue and click the blue Process button to resubmit the order.
- If not use the red Report problem button to create a ticket with us.
- Note if there are multiple errors, please create only 1 or 2 tickets. We will automatically see the other issues.
- Go to the Report tab and see if order is listed there. If so, you'll often see an identifier for Twinfield (in the purple section of the overview) that you can use to search for order.
- Go to the Open tab and check if order is there.
- If you cannot resolve the issue, you can always create a ticket via the green Ask us button.
You can send any other questions or comments to webcare@webwinkelfacturen.nl. For a quick response, please always include the license key and as much information as possible. If you encounter any problems during installation, please let us know where you're experiencing the issue. And if there's an error message, please include that as well. If you think orders is missing, please provide the number and date. This way, we can perform a more targeted search and tell you what's wrong.
We have an extensive FAQ-section on the website. Pay particular attention to these sections: https://faq.webwinkelfacturen.nl/category/26/opencart.html and https://faq.webwinkelfacturen.nl/category/41/twinfield.html.
Would you rather have us do the installation of the integration for you? That is possible. Send an email to webcare@webwinkelfacturen.nl with the request. For an installation, we charge € 39.50 excl. VAT. For installations, we need access to the webshop and the accounting system.
We can perform migrations for orders that took place in the past. The request procedure and method are described in this faq. For migrations we charge €67.50 excl. VAT per 1000 orders.