Tariffs Management (Wholesalers) Mark Williams INSTRUCTION: Title slide only For use at start of call while waiting for participants to dial in.

Today’s agenda MOSL plan Introduction Upload a Tariff Authorise Wrap-up *** Dan’s intro words ***

? 1.0 REC Welcome to the Tariff Maintenance webinar Wrap-up Authorise a Tariff Upload Introduction Welcome to the Tariff Maintenance webinar 1.0 REC ? *** Dan’s introduction words… *** Thank you Dan, hello everyone, and welcome to the webinar on Tariff Maintenance. This session is likely to be one of the shortest ones as we present two pieces of functionality is the CMOS system which will allow you to upload Tariff data and also to Authorise it. The first of these areas that we will look at is uploading tariffs. But before we look into that, it is worth pointing out is that the functionality being delivered is referred to as Tariffs Lite which contains an initially limited set system functionality that you will be able to use, which covers just the Upload and authorisation of Tariff data. The full set of Tariffs functionality will be delivered in a subsequent drop of the code and will include creating and searching for Tariffs and Charge Elements, Timetables, and performing Downloads and so on. (click for next slide)

(click for reveal – Home screen) Wrap-up Authorise a Tariff Upload Introduction (click for reveal – Home screen) Many of you may already have been in contact with the Data Partner to have some of your tariff data loaded into the system. The functionality I will show you in a moment provides you with an option to upload your own tariff data as well should you wish. One thing to note here is that… getting the format of the data right, is crucial in achieving a successful upload. I would like to stress that this training session will not cover data or upload file formats, just the navigation and button pressing required in following the tariff upload process. But what I will say though, is that Alternative tariff Years can be uploaded as part of the XML file – just make sure then that you have the right Effective From Dates recorded in the data set. If you do need to find this format information, the XSD covering this was published on the MOSL website at the beginning of March, and there is some further guidance available in the Tariff Table Master Data Guidance document which can also be found on the MOSL website; and both of these should also be read in conjunction with CSD 0208. Something else that you should also bear in mind is that each new upload will overwrite the current set of tariff data held in the system. This will only apply for the current Tariffs Lite release, and tariffs will be appended to your current set when the full functionality is made available. In advance of using the upload function you will of course need to have your tariff data held in an XML file and in the correct format ready for upload, so it is important to have that ready, and know where the file is saved. So when you enter the CMOS system, you are presented with the home screen and to navigate to where we perform the upload, we go to the Settlements menu… (click for reveal – Tariffs menu item) …where you click on the Tariffs menu item… (click for reveal – Search tariffs menu item) …and then click on Search Tariffs… (click for reveal – Search Tariffs screen) …which takes you to the Search Tariffs screen. Within this screen you will see the Upload button over to the right which you click to bring up a pop up window… (click for reveal – upload to search files) Here, you press on the Select Files button… (click for reveal – select files) …which opens up a window of your folders and files from where you can navigate to your required file and then press Open in the way you would with so many other applications to select and specify the file. (click for reveal – open button) You now simply click on the Upload button and wait for a short time while the system processes that file, which includes validating the data before it is written into the database. (click for reveal – success) If you were successful with the upload, you are then presented with the Upload Result where you see the outcome of the upload with the Success message. If there was an error in the data or a problem with file, you will instead be returned to the Search Tariffs screen with a red banner displayed at the top containing the appropriate error message. From here you can either press on the Cancel button which will take you back to the Search Tariffs screen, or you can use the menus to navigate to the next area for you to continue working. And just to avoid any confusion, if you do press on the Cancel button, this is not cancelling anything to do with the upload, it is just exiting the screen. So what you have just seen is a variant on so many upload type processes and I hope that this simple navigation around the CMOS system will allow you to do this if you need this functionality. Under normal operating situations with a live market, you would be restricted to updating tariffs in the update window set by the Market Operator for a relatively short period leading up to the next tariff year - or possibly by arrangement with the Market Operator if alterative tariff years are being used, or some other reason has cropped up where a tariff update is required; but for this testing phase the Upload window will remain available throughout. The next thing we will look at is the Authorising of tariffs… (click for next slide)

(click to reveal – home screen) Wrap-up Authorise a Tariff Upload Introduction (click to reveal – home screen) The Upload Tariffs process is the first step to making your tariffs available for use within the CMOS system, as they are either in a Draft or Verified state. A point of note here… you cannot upload a Tariff with the status of Authorised. To get your tariffs into the usable state, you need to Authorise them which gives them a status of Active. So while we are working with Tariffs Lite, if you want to Authorise the Tariffs you upload, please ensure they have the status of Verified. As with uploading tariffs, we will start the navigation for authorising tariffs from the Home screen, using the Settlement menu… (click to reveal – Settlement menu) …through the Search Tariffs menu item once more… (click to reveal – Tariffs menu item) …through the Tariffs menu item… (click to reveal – Search Tariffs screen) …to the Search Tariffs screen. And sitting next to the Upload button is the Authorise Tariffs button. Remember that only Tariffs that have the status of Verified will be set to Authorised and become Active for the next Tariff year. Clicking on the Authorise Tariffs button then opens up the corresponding screen… (click to reveal – authorisation screen) …where you need to enter your Authorisation Code. There is no specific code format for the Authorisation Code – it is a code that you use to demonstrate that someone with the appropriate level of authority within your organisation can perform this function and for you to be able to track authorisations. (click to reveal – authorisation code) You then click on the Authorise Tariffs button for the system to process the request… (click to reveal – authorise tariffs button) …and are then returned to the Search Tariffs screen where you will see a green banner showing that the operation has been successful. If there was an issue with authorising the tariffs you would get a red banner containing an appropriate error message and you would need to address it before following the same process to authorise the tariffs. The tariffs will now be active for use in the next tariff year. (click for next slide)

Demonstration of Uploading Tariffs Wrap-up Authorise a Tariff Upload Introduction Demonstration of Uploading Tariffs Navigate to the Search Tariffs screen where you find the Upload button Select your XML file with your tariffs Upload your tariffs Each upload will overwrite any previously loaded tariffs Demonstration of how to Authorise Tariffs Navigate to the Search Tariffs screen where you find the Authorise Tariffs button Clicking this button will prompt you to enter an Authorisation Code All tariffs that are in the state of Verified will be set to Authorised and become active for use in the next tariff year. OK… so that was fairly short and sweet… First we took a look at how to upload an XML file of tariff details by navigating to the Search Tariffs screen where you will find the Upload button. When you clicked on this button you were prompted to search for the required XML file with your tariff data and then to click on the Upload button to process the file. Remember that each tariff upload you do, will overwrite any previous tariff data while we have the Tariffs Lite software release. We then saw how to authorise tariffs by navigating to the same Search Tariffs screen where we were then prompted to enter an Authorisation Code and then update all tariffs that were set to Verified and change their status to Authorised. This then sets the tariff status to Active and makes the tariff available for use in the next tariff year. Well, I hope you found that useful and that you feel you are now able to use the system to upload your tariffs and authorise them. I will now hand back to Dan to open the session up to any questions. Thank you.

Thank you… REC ? Feedback *** Dan leads the QnA section ***