Many new players ignore the Khalid (Al Zahir) and Archbishop item shops. This is a fatal error.
The most common mistake in Anno 1404 is growing too fast. If you build 20 houses immediately, you will run out of tools and go bankrupt. Anno 1404 Venice Guide
Unlike the base game, Venice requires you to repair the relationship with the Grand Vizier immediately. Do not trade with Pirates if you want a peaceful South. Many new players ignore the Khalid (Al Zahir)
Buildings like the Market Building, Tavern, and Church have a radius of influence (shown as a colored circle when placing the building). Houses inside this circle gain an "Environment" bonus, increasing happiness. Trade tip: Sell excess rope, clothes, and cider
Always set up:
Trade tip: Sell excess rope, clothes, and cider to Hassan (occidental) for fast early cash.