Is this sentence grammaratically correct?

"Although I already wished you one at Seminary this morning, I still hope you have a Happy Birthday."

3 answers

correct. The only mistake here is the word "grammaratically"!

Maybe a bit too much capitalization, but I'm not sure that qualifies as grammar.
Should "a Happy Birthday" not be capitalized?
Happy birthday should not be capitalized. I wouldn't capitalize seminary either.