Upgrade to TransPost 4.2.0.0
Do not upgrade if this is you
These versions import into online company files only. Upgrading will not help, and will take away what you have, if either of the following applies:
- You work with offline files. MYOB have withdrawn support for offline files and stopped maintaining them, so this and every future version of TransPost cannot import into them. It is still possible for now with a version of AccountRight SE earlier than 2026.4 and an old version of TransPost, but neither is maintained any longer.
- You still use Classic AccountRight (MYOB version 19 or earlier). It is not supported in version 4 at all – do not upgrade past TransPost 3.3.7, which is itself no longer supported.
If neither applies to you, read on. If you are on a version earlier than 4.1.1 you do need to upgrade before 1 September 2026.
MYOB is changing the way add-on applications such as TransPost obtain authorisation to reach online MYOB company files. In future each file has to be authorised individually.
Versions of TransPost earlier than 4.1.1 stop working on 1 September 2026. 4.1.1 was the release that handled the change, so it keeps working past that date – but 4.2.0.0 supersedes it and is the version we support. Download the version for your product below, install it over your current version, and re-authorise each company file.
4.2.0.0 replaces 4.1.1 and is the version to install. We have tested every transaction type to confirm that pre-existing import functions behave as they did before, but it is a new build - if you find anything that does not, email support@transpost.com.au with the log file and, where relevant, an exported mapping and sample data file.
Back up your mappings
Even though the update will keep your existing mappings, it is still advised to take a backup of your mappings prior to performing the TransPost update.
To backup the mappings, select Mappings tab in TransPost and click Back Up All Mappings, which saves them all to a single XML file.
Import Mappings on the same tab reads that file back in, on this machine or another one. See Mappings for more about both buttons.
Downloads
| Version | Released | |
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TransPost 4.2.0.0 | August 2026 |
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TransPost Express 4.2.0.0 | August 2026 |
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TransPost Plus 4.2.0.0 | August 2026 |
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TransPost Premier 4.2.0.0 | August 2026 |
Windows may warn you the first time you run it
These are the first builds signed under our new Third Horizon Labs certificate, so for a while Windows will say the file “isn’t commonly downloaded”. Check the Publisher reads:
Third Horizon Labs Pty Ltd
If it does, choose Keep in your browser’s download list, then More info and Run anyway if Windows asks again. If it reads anything else, do not run it – tell us.
Re-authorise each company file
If you run the TransPost Service
MYOB's authorisation lapses after 7 days without use, but the TransPost Service refreshes it on every run. As long as the service runs at least once within any 7 day window it keeps each file authorised on its own, with nothing for you to do.
If the service is stopped, or goes more than 7 days without a run, the authorisation lapses and the next run fails. Re-authorise the file in the TransPost user interface using the steps below and the service carries on from there.
Once TransPost 4.2.0.0 is installed you need to re-authorise it against each online company file. The video walks through the whole process; the steps are written out underneath it.
To do it yourself:
- On the Start tab, click on Link to Company File
If using TransPost Premier the Company Files form will appear, otherwise it will open the Link to Company File Form directly
- If using TransPost Premier, Click on the Connect a Company File button to open the Link to Company File Form
- On the Link to Company File form, Click on Authorise Online
- If you get a MYOB login pop-up use it to log in. You must log in as an authorised administrator for your file.
You should now have a MYOB pop-up asking you to select the business you'd like to connect
- Select the file you need to link from the drop-down list at the top of the form
- Click the Connect button at the bottom of the MYOB popup. (Note that it sometimes responds quite slowly, taking a while to activate that button and then responding to a click.)
The MYOB pop-up should close and you should see a message beside the Link to File button
- If you do not get a message saying "The file is authorised and ready to use" repeat from step 3
- Click on the Link to File button to finalise the link with TransPost
- CLick Close to close the form, and if using TransPost Premier repeat from step 2 for each of your files.
