What is a valid screen name for Twitter Cards?



I was trying to create my website’s Twitter Cards but the validator warned like below when I submitted ‘Request Approval’ form for my domain:

Error Encountered
Something went wrong and your request to be added to the whitelist failed. Please try again.

Reason: is not a valid screen name

It seemed the validation was ok because all the light were green except optional Mobile App Integration part.

Can you please have a look at my Twitter Cards settings? The url I was trying to validate and ask for an approval is http://stripes.co.kr/products/premium-italian-blue-windowpane



Hi there - we looked into this, and it appears that the @username value was left empty. Can you try stepping through the process again, and this time please be sure to fill out a value for the twitter:site tag. That is a required field.


Thanks, I could solve this problem from https://dev.twitter.com/discussions/16485
I guess some people find it difficult to know there are more to fill in.