What is the difference between “push” versus “pull” on-line billing?

The terms “push” and “pull” are now commonly mentioned when on-line billing is being described, but what do these terms actually mean in this context and what is the advantages of one over the other?

A “push” based on-line billing process essentially means that a consumer is prompted or alerted directly with a full invoice, statement or other document describing what has been purchased and what needs to be paid. This is therefore what is commonly called a “rich” document. For the most part, push-based on-line billing systems are carried out as e-mail notifications with attachment files (such as a PDF for example).

A “pull” based on-line billing process will still alert a consumer that an invoice is ready to be paid but instead of including the rich document, invites the consumer to go to a nominated web site where they can find the full bill to be viewed and subsequently be paid in digital form. Both e-mail and text messaging can be used to simply alert the customer, but merchants may elect to use off-line notifications (letters, paper-based invoices etc) as well.

Both push and pull models on online billing offer merchants the opportunity to reduce or eliminate paper invoices over time but each has advantages and disadvantages.

The advantages and disadvantages or Push-based on-line billing
Push based on-lined billing has the advantage of using a very common and familiar system that most businesses and consumers now use with relative ease -their email. Recipient addresses are unique and go straight into an inbox to be read either immediately or when the person opens their email system. In addition, emails are now readily received on mobile phones and other portable devices, allowing for very fast delivery, flexible viewing and (in some cases) access to online payment options.

Despite the above, there are a number of drawbacks with this push-based delivery model. They include:
* An email address may be incorrect or not reach the right recipient directly
* Many individuals and even organisations may have inbox restrictions the size of incoming emails. This will limit the opportunities for presenting invoices (especially when the attachment is large in size).
* Staff turnover in businesses and changes to email addresses by consumers means that it is often difficult to ensure the complete integrity of email addresses.
* Recipients can claim that they never received an email with an attached e-bill
* It is not always easy to differentiate copy invoices from original invoices with push on-line billing.
* An attachment (such as a PDF) is still only a piece of paper. A consumer may just print it and pay it offline and/or a merchant cannot easily reconcile the data (needing to key in the data again).

The advantages and disadvantages or Pull-based on-line billing
In Pull-based on-line billing, an email is more equivalent to a paper-based notification in the physical mail and simply serves to alert the customer that an invoice is available for viewing and processing at the nominated billing website (the biller’s own or a third-party aggregator’s one). As well as presenting the invoice a fully digital and therefore clickable format, web 2.0 internet technology also makes it possible to distinguish between the original and copy invoice. In addition, this fully digital format makes for very simple upload or transfer to an accounting system, thus eliminating any requirement to key in data manually and greatly aiding the reconciliation process. In addition, full digitisation allows the recipients to view their bill and render payments all on-line, at the same web site (which they may choose to do as soon as it is received).

Just as with Push based on-line billing, there are nonetheless a number of drawbacks with this pull-based delivery model. They include:
* Recipients may forget their logins and passwords to the billing web site to which they are being directed
* Recipients may not trust the web site to which they are being sent, or least feel nervous about the security offered (especially where payments are concerned)
* Consumers may be confused with what is likely to be a simplified bill or one which approximates to the one they receive in the mail-it is often similar but not the same.
* The billing web site may not be very user-friendly (leading to consumer abandonment)

So, in summary, we can say that both push and pull on-line billing have many advantages worth considering but also have a range of disadvantages that need to be considered one-by-one according to each merchant’s needs. In overall terms perhaps there are less onerous disadvantages on the “pull” side, and it is this approach consequently has the present advantage. However, as usual in the online world, choice and convenience are always key considerations, and it may well be that offering both a push and a pull-based solution offers the best outcome of all (and most quickly attains the paperless system than many merchants may crave).