Query or diagnostic callbacks are not compatible with dynamic search, a feature which explores a solution space in a way that departs from a conventional branch & cut tree.

Normally, ILOG CPLEX chooses whether to apply dynamic search or conventional branch & cut based on characteristics of the model. To benefit from dynamic search, a MIP must not include query callbacks. In the presence of query or diagnostic callbacks, ILOG CPLEX turns off dynamic search, issues a warning, and applies conventional branch & cut.