Starbucks will add guardrails to mobile app orders.Lindsey Nicholson/UCG/Universal Images Group via Getty ImagesStarbucks wants to curb chaotic and complex mobile orders.CEO Brian Niccol announced that "common sense" guardrails will soon be put on app customizations.Niccol aims to overhaul the chain after the company reported a disappointing third quarter.Starbucks will soon start to crack down on excessive customizations made in its app as the company aims to improve its mobile ordering and in-store experience.CEO Brian Niccol said the coffee chain will implement "common sense guardrails" on app orders in the coming months as part of the company's effort to separate the pick-up process from in-store orders.The former Chipotle head made the announcement during a "disappointing" third-quarter earnings call on Wednesday.