appear append button clearer code column combination create custom data default don example explanation field help info information instance involve item link log logs manually method modifying number numbers ordered page pages passed product products program scripting single standard stored transaction txn type unique unit url value wish

I want to pass some information unique to each product that's ordered. I would like to enter that information when I create the product in E-junkie.

How can I do that. If the example is already in the help section I need a clearer explanation and example than just a link to the page because I've read every help page.

What field will the information be stored in my transaction log?

Is the custom info unique to each unit of the product, or just unique to each type of product?

In the latter case, the simplest method would be to specify it as the Item Number of the product -- you don't have to use the default number we put in there, as long as what you enter in Item Number does not match any of your other products; you should be safest sticking with any combination of letters, numbers, dashes-and_underscores.

If you need to specify some custom data for each type of product in addition to Item Number, that would have to involve modifying our button code manually somehow. The standard, and simplest, method would simply append &custom=your-value-here to the end of each button URL. This custom value could be unique for each instance of a single product's button code, and you could even program your own scripting that appends a custom value into each URL in your pages dynamically if you wish. This custom value would appear in your Txn logs in the "Passed Custom Param." column.