The html code on SDK guide is used to post a domain name to the store. When we type a URL, check .com and select single URL, the store shows the following error under Check Domain For Registration:
Please select TLD.
In Plesk Client hosting plan, the specified Domain Registration hosting plan, which might be found at
Top > Billing Director > Product Manager > Hosting Plans > Plesk Client hosting plan > DNS Settings tab
Make the domain registration hosting plan is Active, at :
Top > Billing Director > Product Manager > Hosting Plans > Domain Registration hosting plan > General Settings > Active [V]