Which Architecture domain is recommended to be the first architecture work undertaken in the ADM cycle?

Application Architecture is typically developed after the Business Architecture, as it supports the business processes defined.

The TOGAF Architecture Development Method (ADM) is business-driven, meaning Phase B, Business Architecture, is developed immediately after the Architecture Vision to establish the fundamental business context and requirements that inform all subsequent architecture domains.

Data Architecture is typically developed after the Business Architecture, as it defines the data assets required to support business functions.

Technology Architecture is typically developed last, as it defines the infrastructure and platform components required to support the data and application architectures, which in turn support the business.