Messente avatar logo

Top 5 Most Common Mistakes When Implementing SMS Messaging API

- 5 MIN READ - 20 Oct 2013

Implementing SMS messaging to your existing web app is always a hassle and takes some time to get everything right.

Spending days on implementing some appearantly simple API is not very interesting and this usually results in extra coffee break for the developer instead of adding one more "if-then-else" to the code.

Messente for example has multiple Helper Libraries for most popular programming languages that do the heavy-lifting for you to avoid some common mistakes but you should not overlook most common practices.

1. Check the Response Code and Act Accordingly

Usually developers check if the SMS was successfully sent to the service provider and if there is an error, the app tries to send the text again or just skips it.

When an error code is returned there should be at least two different processes implemented:

In either case, server administrator should be notified that an error occurred and someone should look into it, which lead us to the next point.

2. No Notification System in Case of an Error

When error code is returned for the message sending request, there could be dosens of reasons why it failed.

In every case, server administrator should be somehow notified that something unexpected happened with the SMS messaging service.

Having internal notification system will help you avoid most common causes like for example when the account runs out of credits.

3. Your IP Address has Changed

Messente has implemented IP-based filters for API calls to block requests from unwanted servers.

When possible, get your server a static IP address. You can also add a list multiple IP addresses in the API settings to allow requests to be made from multiple servers.

4. Incorrect Encoding of the Message Body

The most commonly used character encoding in the web is UTF-8, that supports all the characters from all alphabeths. This is also what Messente assumes you are using.

When testing out the API and everything seems to be working with simple “abc”, you might run into trouble when suddenly you need to send text with “ñ” character in it.

If you are using some other encoding like Western (ISO-8859-1) or Cryllic (KOI8-R), first convert the text to UTF-8.

Or when that is not possible, just let Messente know what encoding you will be using and it will take care of it.

5. Backup Route is Not Implemented

You are still able to send SMS messages even when the main server is having hickups by simply switching to a backup server.

It happens rarely that Messente’s main server is down, but when nature is having a bad day, nobody is safe.

What’s Next?

Stay tuned for next versions of API helper libraries by following us on Twitter or Facebook.

Jaanus Rõõmus

Jaanus Rõõmus - CTO

Jaanus is co-founder and CTO of Messente and makes sure its wheels keep spinning and Messente always has a full tank of fuel.

An easy way to add more confidentiality - hiding SMS content

15 Aug 2017

In a previous blog, we discussed Flash SMS and how it’s used to ensure confidentiality with SMS messaging. Well, Messente’s API provides two more features that help hide message content:

  • Content no-store
  • Content hashing
Uku Tomikas

Uku Tomikas

Join us to learn how we're helping people #TurnOn2FA

01 Aug 2017

We’ve developed solid APIs for global SMS messaging and two-factor authentication, which are currently part of processes for hundreds of companies and facilitate thousands of transactions every day. Yet we aren’t stopping there. Effectively communicating with customers and securing customer account access online are two aspects of business technology we focus on. While there’s much more to business technology (much, much more,) these are the two areas which we strive to be the best.  

That’s why we keep developing our tools to address evolving needs in the areas which we specialize. 

Yuriy Mikitchenko

Yuriy Mikitchenko

Tools to avoid breaking the budget with SMS

01 Aug 2017

Getting the most bang out of each buck in a marketing communication strategy requires solids budget estimation. Yet when the budget is broken halfway through the month, the questions arise: How did this happen? How have we sent twice as many SMS messages than we should have at this point? Well, this is where the multipart SMS comes into play.

Uku Tomikas

Uku Tomikas

Start sending messages to

for € N/A

Contact us