1. A computer-implemented method for configuring integration capabilities for system integration, the method comprising: receiving, using one or more processors, a configuration stencil that is a configuration artifact of a message flow, the configuration stencil comprising at least one configuration point, the configuration point currently having no assigned value, and at least one constraint for the configuration point, the constraint being a rule or type for a value to be assigned to the configuration point; receiving, using one or more processors, input comprising at least one configuration point value for the configuration point, the configuration point value having been selected based on first and second systems to be integrated using the message flow; determining whether the received configuration point value violates the constraint and if so requesting another configuration point value from the input; and generating a configuration stencil instance based on the configuration stencil and the input, the configuration stencil instance representing the message flow in an integration of the first and second systems.