Abstract: Considering that Functional Communication Training is one of the most commonly implemented interventions to reduce problem behavior and increase appropriate function-related communication, knowing the basics is not enough. It is critical that FCT interventions include components that address increasing the complexity/level of the functional communication response (FCR), develop FCRs that are robust and persistent, and ultimately advance the intervention such that it can easily be supported in the natural environment by readily available behavior change agents. This workshop focuses on advanced components of FCT, including strategies to advance the FCR, methods to teach the individual to accept and tolerate delays and denials, and procedures that support schedule thinning to levels appropriate for the individual’s natural environment and contexts. Learning Objectives Increase knowledge of why it is critical to increase the complexity of the FCR. Increase knowledge of strategies to systematically produce more complex FCRs. Increase knowledge of methods for teaching acceptance of delays and denials, following the FCR. Increase knowledge of procedures to support effective and contextually relevant schedule thinning.