Validation for metatags

General validation rules

Any metatags that are passed through overwrite what has been added in the survey on our web application
You do not need to provide all possible metatags - if a metatag isn't added, we apply what is saved in the web application
For survey question: this has to include a placeholder for the question subject
We enforce a character count of 100 for survey question and question subject metatags

If you use all element (all scores), you can't also customize by score for that recipient
For request_for_comment and thank_you_note if you use "customize by score" you must provide it for all three options (promoter, passive, detractor) and the value cannot be null
For thank_you_link_text and thank_you_link_url you don't have to use all the "customize by score" options. I.e., you can have just promoter, or have detractor and passive (or you can have all three). Any fields not provided will be presumed to be empty
It is recommended, but not required (i.e. don't validate) for the request_for_comment to include a placeholder for %[score]
However, in every scenario, you have to have both the thank you link text and URL filled (or neither). You can't have text for passive and URL for detractor
URL has to be correctly formatted