Australia Post Shipping by AMP

I would suggest only using the Lite plan of this app. We've been using it for a couple of years for shipping rates at checkout and it was all good until recently we tried upgrading to the Basic plan. The "ETA shown with shipping rates" feature doesn't work quite well for international orders - it shows longer time than Australia Post's website.
Another big problem we had was updating packagings. Our shipping rates were down for a day on a weekend so I had to email the support team and waited till Monday - yes, their app is handling such an important step of online shopping and it charges quite a lot but they are not 24/7, not even supporting you on weekends. After their response I realised there's a really CRITICAL thing that you should always set up a packaging for customer checkout and it has to be "your own packaging" with clear dimensions of L/W/H, otherwise no shipping rates will show at checkout. We took a lot of efforts to finally figure out the details not mentioned for making shipping rates work, however this is not clearly stated in instructions!
All these frustrating things we had made us downgrade back to the cheapest one...

After years of using and being super happy with this app., I encountered a shipping problem with an item that should have gone smoothly. The Staff spent some time investigating and finding the problem, which was created by myself, and then fixed it for me. I can thoroughly recommend both the app. and especially the helpful Staff.

We have had this app since 2022, at that point we received great customer service when adding new products was causing issues.
Fast forward to 2024 and we have had the postage down for four days, have emailed the app who told us the team were away in Singapore, we have customers emailing as they can't place orders and are losing money.
If you set up an app you need to be available to people year round as businesses do not stop just because you are away for team building activities. We have emailed numerous times and no one replies.

Reading the reviews it says there is no after hours support-I told them 12 months ago they needed this, also there is no one helping during their business hours so its rubbish

Regrettably, our experience with the Addition app has been disappointing, especially considering its cost of 76.85 AUD every 30 days.

Limited Functionality for High-Volume Businesses:
Unable to handle more than 30 orders at a time efficiently, making it unsuitable for businesses looking to scale. You have to manually select each order to use the app. For us that means manually clicking hundreds of orders individually which is annoying and time-consuming.

Manual Order Editing Required:
A significant portion of our orders need manual adjustments due to the app's lack of support for packaging (Aus Post Satchels), manually clicking hundreds of orders individually to update the packaging which is annoying and time-consuming.

No Timely Updates:
Despite reporting these issues months and months ago, the response has been lackluster with no clear resolution in sight. Only 'workarounds' that are incorrect and again having to edit each order through the address, packaging and fulfilment step.

Final Thoughts:
Given these substantial limitations and the time-consuming nature of its use, Addition does not meet the our needs. While support is fast, the investment does not match the return, making it an impractical choice. Looking for an alternative app.

Addition support is the man, and the App works better than advertised!