A method for automatically setting a variable boom position of an adjustable distributor boom of a building material pump apparatus and/or thick matter pump apparatus, wherein at least one same tip position of a boom tip of the distributor boom can be achieved by different boom positions (MS, MS'), wherein the method has the step of: - determining and setting, by a setting device, a boom position depending on a predefined variable ascertaining a tip position and on the basis of an optimization criterion, wherein the optimization criterion is a minimized tilting moment of the distributor boom with respect to a support system of the building material pump apparatus and/or thick matter pump apparatus, wherein the tilting moment depends on the boom position, characterized in that - the step comprises: determining and setting, by the setting device, a change starting from an actual boom position on the basis of an, in particular greatest, minimization starting from an actual tilting moment of the distributor boom with respect to the support system, wherein the actual tilting moment depends on the actual boom position, - wherein the step comprises: controlling, in particular regulating, by the setting device, the boom position for achieving and/or maintaining of the tip position, in particular starting from the actual tip position (ISPO) of the distributor boom and/or during the determining and the setting of the change and/or as long as the actual tilting moment is minimized, and - wherein the step comprises: determining and setting, by the setting device, the change and controlling, in particular regulating, the boom position by determining a solution for a kinematic relationship between minimizing the actual tilting moment and achieving and/or maintaining the tip position. - determining and setting, by a setting device, a boom position depending on a predefined variable ascertaining a tip position and on the basis of an optimization criterion, wherein the optimization criterion is a minimized tilting moment of the distributor boom with respect to a support system of the building material pump apparatus and/or thick matter pump apparatus, wherein the tilting moment depends on the boom position, characterized in that - the step comprises: determining and setting, by the setting device, a change starting from an actual boom position on the basis of an, in particular greatest, minimization starting from an actual tilting moment of the distributor boom with respect to the support system, wherein the actual tilting moment depends on the actual boom position, - wherein the step comprises: controlling, in particular regulating, by the setting device, the boom position for achieving and/or maintaining of the tip position, in particular starting from the actual tip position (ISPO) of the distributor boom and/or during the determining and the setting of the change and/or as long as the actual tilting moment is minimized, and - wherein the step comprises: determining and setting, by the setting device, the change and controlling, in particular regulating, the boom position by determining a solution for a kinematic relationship between minimizing the actual tilting moment and achieving and/or maintaining the tip position.