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Marlin GTX help

Point-of-sale and business management for tyre and mechanical workshops.

Supplier Inbox

Learn about the the supplier Inbox and electronic purchase orders in Marlin GTX trusted automotive software by Megabus.

Updated 30 October 2026

**Marlin GTX** enables direct processing of electronic supplier orders using the inbox.

The inbox receives electronic supplier orders directly into GTX and imports them into the Purchases module for processing.

When a new inbox order is received, the inbox status tab at the bottom of the GTX window will turn orange and the number of outstanding orders will be shown in brackets.

Screenshot from the Supplier Inbox BT help article

Double-click the Inbox tab to open the Inbox module.

Tip — Direct inbox ordering can be set up for Megabus's many supplier partners including Burson, Repco, Bridgestone, Continental, Michelin, Pirelli, Yokahama and more. To set up electronic ordering for these or any other available suppliers, contact the Megabus Support Team
Note — The Inbox can also be accessed by selecting Main > Enquiries > Inbox from the menu bar.
Screenshot from the Supplier Inbox BT help article

Invoicing Inbox Orders

The Inbox module will open, showing a list of unprocessed inbox orders:

  • Double-Click on a message to open it
Screenshot from the Supplier Inbox BT help article
Note — Inbox orders can be invoices or credits.

The order will open in the Purchases module, with the Supplier, Invoice Number and other details already filled in.

Screenshot from the Supplier Inbox BT help article

Double-check the order details:

Note — All of the invoice details can be edited, if necessary, except for the Total invoice and GST amounts.

The order can then be finalised, as usual.

Screenshot from the Supplier Inbox BT help article

Unmatched Products

Most products on inbox orders will be automatically matched with those in your GTX system.

If a product is not recognised, it will show a series of red question marks and needs to be matched manually.

Screenshot from the Supplier Inbox BT help article

To match the product:

  • Click on the **Magnifying Glass** picker in the Product column
  • The External Code Matches pop-up will open, showing a list of possible matches
Screenshot from the Supplier Inbox BT help article

If present, select the correct match from the Possible Matches list.

Alternatively, click on the Add a New Match button at the bottom right, if none are appropriate.

Screenshot from the Supplier Inbox help article

The New Match for an External Code pop-up will open:

  • Select a Product Code to match with
    • To automatically match the same product with that code in future, click Remember Match
    • To only match this time, click Match Once
Note — New products cannot be added from this module. If an appropriate product does not exist, you will need to add it using Product Maintenance, before you can match it in the Supplier Inbox.
Screenshot from the Supplier Inbox help article