Somehow, it implies having the ability to define and use multiple currencies within a single Tiki site, similarly to what can be achieved with Community Currencies linked to a CCLite server, which allows using those multiple currencies with other sites (intertrading), sites which can be powered by Tiki or other CMS/Softwares, such as Joomla, Drupal, Elgg, etc.

Credits have a few characteristics:

• Credits have expiry dates and validity periods.
• Admins can configure different credit types and you can have different credit types for different sites

• The admin panel for this feature is at tiki-admin_credits.php
  

• You also need to define which TUC types are allowed in the tiki site, through "Admin home > Payments > Tiki User Credits" (tiki-admin.php?page=payment):
  
  

• Credits are used in the order of the earliest expiration date. Credits with no expiration date are used last.

Some definitions (useful for the admin panel):

You add credits to users through tiki-admin_credits.php?userfilter=username (being username the name of the user; which you can type in the username search bo

An admin can also set that a user has already consumed some of that set of allocated credits:

And a report on the historical usage can be shown also:

You can pay invoices of Tiki Payments using Tiki User Credits.

The credits that a user has left can be seen at any time by means of the module Module credits:

You could make use of functions in lib/credits/creditlib:

function useCredits to use up credits and function addCredits to add credits for users. Also use getCredits to get a user's credit information, and getScaledCredits which extends getCredits with more human readable information.

Credit | TUC | TUCs | Tiki User Credit | TikiUserCredit | TikiUserCredits | Tiki User Credits