On July 16,2015 WHMCS Company released version 6.0.1 with a new setting named "Store Client Data Snapshot" that has been added in Setup -> General Settings -> Invoices. Enabling this, you can store a copy of the clients data (e.g. name, address, custom field data, etc.) each time an invoice is generated, so that any future changes to the clients profile information do not result in any changes to existing invoices. The problem is that, invoices created before "Store Client Data Snapshot" started do not have store separate client's data snapshot (if a client changes his details, all the invoice details change too). Also, you can not change snapshot data stored in the invoice. This Addon comes to solve this problem.

Key Features:

• Add or Remove a snapshot for a single Invoice
• Add or Remove a snapshot for Invoices Selected
• Add massive snapshots for all Remaining Invoices
• Change Invoice data and custom field data on single Invoice
• Multi-Language Support (english file included)
• Supports WHMCS V7 and Template Six
• Supports Ioncube decoder v8.0 and above
• Supports PHP 5.5 and above (tested with 5.6.30)

Installation:

Navigate to https://my.friktoria.com/cart.php?gid=12 and purchase your licence.
Download the Addon Module zip file.
Unzip and upload the whole folder in the .../modules/addons/ directory of WHMCS.
Open your WHMCS admin panel and navigate to Setup - Addon Modules.
Find the module named FRK_InvoiceData_Updater and press activate.
Then press configure, insert your licence and choose the admin role groups to permit access to this module.
Hover the mouse over Addons tab and open your new Addon.

Update:

Open your WHMCS admin panel and navigate on Addon Modules Menu through setup tab.
Find the addon and click to deactivate.
On .../modules/addons/ directory remove the addon folder and place the new one.
Open Addon Modules Menu, activate and configure again as installation steps 4,5,6.

Remove:

Open your WHMCS admin panel and navigate to Setup - Addon modules.
Find the Addon and click deactivate.
Remove folder from .../modules/addons/ directory and you are done.

Reissue Licence:

Navigate to https://my.friktoria.com/
Login to your client area.
Find your services.
Open FRK_InvoiceData_Updater service.
Click on reissue.
Move your addon in another server.
Automaticaly new valid domains, ips, directory, etc. for your Addon will be generated.