ABC Skyscrapers Sudoku (Daily Sudoku League #131)

Currently, I have a good amount of Sudoku puzzles created. So this week I have to good choice to post a puzzle for Daily Sudoku League. Puzzle Ramayan's 2nd round is also starting soon. So I thought that posting the Sudoku which will help one to prepare for this round of Puzzle Ramayan. So Kropki Sudoku and ABC Skyscrapers Sudoku suits for today. ABC Skyscrapers Sudoku puzzle is a mix of Easy as ABC and Skyscrapers puzzle. Today I am posting the ABC Skyscrapers Sudoku puzzle which I created to practice for 2nd round of Puzzle Ramayan. In fact, I created two puzzles of this type and during testing found a typo in one of the puzzles. I have corrected 2nd puzzle now and will post that puzzle soon after another round of testing. Today I am posting ABC Skyscrapers Sudoku as 131st Sudoku in Daily Sudoku League. Tomorrow I will be posting Kropki Sudoku. Can you solve this Sudoku puzzle?

Rules of ABC Skyscrapers Sudoku

Fill in the grid with letters A, B, C, D, and E, and digits 1, 2, 3, and 4 so that each row, column, and outlined 3x3 region contains different symbols. Each number inside the grid represents the height of a building. The number clues outside of the grid indicate how many buildings can be seen when looking from that direction. Taller buildings block the view of smaller buildings, but letters do not affect visibility. Letters outside the grid indicate the first seen letters from the corresponding direction.