How can I create a certificate for wgt creation Tizen 4 to 7

How can I create a certificate (author and distributor) with TizenStudio 5.5 with which I can create a WGT that can be started on all Samsung Tizen (version 4 to 7). I have the problem that the WGT I created cannot be started.
Is this due to the DUID that I have to enter when creating the certificate and do I have to specify this at all because I want to install and start this WGT on all Samsung Tizen TV devices?
Which ID is this exactly in the info description of the TV (Samsung AU8000)?
Can the WGT only be installed on this device with this entry?
Is our Samsung account authorised to generate a WGT file certificate for all Hospitality Samsung Tizen TVs?
We only need the WGT as an entry point to our cloud app for any Samsung Tizen 4-6.x Hospitality.
Thank you.

You might want to ask this on the B2B community hospitality TVs are a bit different than Smart TVs in distribution and run on device.

For others normal Smart TV
An Author’s certificate tells Samsung who you are when you upload content to the Smart TV Seller Office.
The Distributor Certificate tells the device that it is OK to install that .wgt on the TV and the one you can generate with Certificate manager.
Normally you connect your computer and TV with Device Manager then open certificate manager and your DUID is added to the list to or you can add a list of DUID for multiple devices.
See this documentation I believe you can have up to 20 DUID’s total.
Or you can distribute a Beta test in the Seller Store and make it available to more devices.

However… Hospitality TV’s are different
If you don’t see any help and are still stuck
You can look for an answer in the FAQ-Q/A under the most appropriate topic on the Smart TV Seller Office site If you don’t find a solution there then sign in and open a Smart TV Seller Support Request . They can help you better there.

Samsung Developer Relations