A forming control apparatus for controlling a forming process performed by a forming unit arranged to form a three-dimensional object, the forming control apparatus comprising: a reception means arranged to receive, during the forming process for a first object performed by the forming unit, an instruction to form a second object, which is different from the first object, and forming data corresponding to the second object; a specifying means arranged to specify a third three-dimensional space where an object can be additionally formed by the forming unit, based on a first three-dimensional space of the forming unit where an object can be formed and a second three-dimensional space required to form the first object in the first three-dimensional space; a determination means arranged to determine whether the second object can be formed in the third three-dimensional space; an instruction means arranged to issue, to the forming unit, a forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means according to the determination by the determination means, wherein, parallel to forming the first object by the forming unit, at least part of the second object is formed by the forming unit in the third three-dimensional space in accordance with the issued forming control command; and a notification means for issuing a completion notification in a case where the forming process for the first object and the second object by the forming unit is completed; characterized in that, the determination means is arranged to further determine whether a forming layer pitch included in a forming setting of the first object is the same as a forming layer pitch included in a forming setting of the second object or not in order to determine whether the second object can be formed additionally or not, the notification means is arranged to further issue, in a case where the forming layer pitch included in the forming setting of the first object is not the same as the forming layer pitch included in the forming setting of the second object, a notification indicating that the second object cannot be formed, without issuing the forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means; and the instruction means is arranged to further issue, to the forming unit, the forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means in a case where the determination means determines that the second object can be formed in the third three-dimensional space and where the forming layer pitch included in the forming setting of the first object is the same as the forming layer pitch included in the forming setting of the second object. a reception means arranged to receive, during the forming process for a first object performed by the forming unit, an instruction to form a second object, which is different from the first object, and forming data corresponding to the second object; a specifying means arranged to specify a third three-dimensional space where an object can be additionally formed by the forming unit, based on a first three-dimensional space of the forming unit where an object can be formed and a second three-dimensional space required to form the first object in the first three-dimensional space; a determination means arranged to determine whether the second object can be formed in the third three-dimensional space; an instruction means arranged to issue, to the forming unit, a forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means according to the determination by the determination means, wherein, parallel to forming the first object by the forming unit, at least part of the second object is formed by the forming unit in the third three-dimensional space in accordance with the issued forming control command; and a notification means for issuing a completion notification in a case where the forming process for the first object and the second object by the forming unit is completed; characterized in that, the determination means is arranged to further determine whether a forming layer pitch included in a forming setting of the first object is the same as a forming layer pitch included in a forming setting of the second object or not in order to determine whether the second object can be formed additionally or not, the notification means is arranged to further issue, in a case where the forming layer pitch included in the forming setting of the first object is not the same as the forming layer pitch included in the forming setting of the second object, a notification indicating that the second object cannot be formed, without issuing the forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means; and the instruction means is arranged to further issue, to the forming unit, the forming control command for forming the second object in the third three-dimensional space based on the forming data received by the reception means in a case where the determination means determines that the second object can be formed in the third three-dimensional space and where the forming layer pitch included in the forming setting of the first object is the same as the forming layer pitch included in the forming setting of the second object.