When opening the TMA1000 Works form the following error is seen:
TMA-0085: XML Schema has not been registered:
When a user opens the TMA1000 Works form various checks are performed and one of these is to ensure the EToN XSD schemas have been registered.
The EToN XSD schemas are a set of files issued by the DfT to ensure the XML of EToN notices is in a valid format. These files aren't used to validate the content or order of notices, they are used to ensure the correct elements have been supplied for a particular notice type and are of the correct data type etc. For example these files are used by the TMA web server to validate received notices and if anything is found to be amiss, the web service will then reject the notice and automatically return an 'Invalid XML' response to the sender.
To stop the error being shown you will need to register the EToN XSD files. You should follow the steps shown in the Product Installation and Upgrade Guide for the version you have installed. For example if you have upgraded to the 18.104.22.168 release, please see pages 48 and 49 of the Product Installation and Upgrade Guide: