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Addon Overview

During the work to build Lyd Hosting, we noticed that WHMCS was facing some legal loopholes regarding billing. Indeed, we discovered that the services being reimbursed did not generate new invoices, but only modified the previously issued invoice.

A situation that does not comply with European law which prohibits the modification of previously issued invoices. Forcing contractors and businesses to create a “credit note” in the event that an issued invoice needs to be changed, which is the case with a refund.

Why did you choose to develop an addon?

We have carried out research to try to find a solution to overcome this problem. This work led us to realize that the WHMCS team had known about the problem for more than seven years and that no solution had been found until now. There are many complaints about this and some solutions exist to try to fill this gap.

One of the first possibilities that presented itself to us was to use an addon that allows invoice generation to have by creating an invoice with negative values. However, the extension in question has not been updated since 2018, which has made it obsolete with recent versions of WHMCS. And this did not take one thing into account: credit note invoices must include mandatory legal notices.

The last solution was to use a paid extension to fill this gap. However, you had to pay a certain amount of money each month to continue to benefit from a valid license. Hardly possible in our case, we needed to reduce costs as much as possible. Even if it means having to go through the programming box.

What are the features of your addon?

Our addon does not just generate a credit note, many things had to be worked on to ensure the most complete integration within WHMCS. And we have also worked on certain practical aspects such as the possibility of sending credit note invoices to an FTP(s) to keep them systematically in a safe place.

A "Refund invoice" button is present on the page of each invoice and leads to a simplified form. Although all work can be improved, we have tried to make things easier for you by retrieving and carrying out most of the actions necessary to create an invoice automatically. For you, we have listed all the features of our addon below:

• Invoice generator to have in full respect of the mandatory legal notices in France and in most European countries.
  • You can show negative values ​​on your invoice by selecting the corresponding checkbox in the addon settings.
  • Some modifications to the code may be necessary depending on your country of activity.
• Simplified configuration of the addon via the "Addons" page of WHMCS.
• Full refund and partial refund are supported by the addon.
  • In the case of a total refund, the services concerned by it can be canceled automatically after the creation of the invoice to have.
  • In the event that the refund is made in another currency, it is possible to select it from a drop-down menu on the credit invoice submission form.
• Support for the VAT exemption and the possibility of adding a mention about it.
  • In France, it is mandatory to add the words "* VAT not applicable - article 293 B of the CGI" on all invoices concerned by the deductible.
• The VAT is clearly mentioned on the generated invoices. "Tier 2" taxes are also indicated.
• The language of the invoice adapts according to the customer's country of origin.
  • You can create your own language file in the "/lang/" folder: it must respect the international standard ISO 3166-1 by using a lowercase Alpha-2 code to work.
  • It is possible to disable this feature in the addon settings and choose the default language yourself.
• The customer concerned by the credit note invoice can find the generated invoice in the customer area.
• The transactions carried out on the reimbursed invoice are modified to indicate the existence of a reimbursement and to indicate the amounts of the outgoing sums.
• Systematic backup of credit note invoices on an FTP is possible.
  • The option must be activated in the settings. This will allow you to keep your credit note invoices in a safe place to meet your legal obligations.

We would like to remind you that addon updates are free and will be sent to you by email. We are open to any discussion to improve our addon, we know that the rules in terms of credit note are not all identical within the European Union. And we are ready to work to extend the functionalities and best adapt to all the particularities of each EU member state.