The Token service is used to generate a random, unique number, per merchant account, so you can store sensitive information on your server. Today we provide tokens for credit card and checking accounts. But our systems are ubiquitous and if you have other sensitive data you wish to convert to a secure token give us a call.
For testing set the following fields after selecting the "Try It" button
externalReferenceID = Unique record identifier for processing - you assign Numeric Min = 16 Max 19
transactionDate = Set to UTC Timezone
Link to UTC time = https://time.is/UTC