The steps that an implementation team should take to integrate Revenue Cloud with another system are:

B. Complete a source to target mapping of the fields that will integrate between systems: This step involves defining how data fields in Revenue Cloud correspond to data fields in the external system. It is crucial for ensuring accurate data flow and integration functionality between the systems.

D. Design an architecture view of how data integrates and flows between systems: This involves creating a detailed architectural blueprint that outlines how data will be transferred and managed between Revenue Cloud and the external system. It helps in identifying potential integration challenges and ensuring thatthe integration supports the business processes effectively.

These steps are based on best practices in systems integration, focusing on data consistency and integrity, along with a structured approach to designing integration flows.