A method and system for integrating a restriction object with a material object is provided. A reference is generated between a material object and a restriction object. A restriction note is received from a supplier having a material restriction for a material in the material object. A material position is searched in the material object using a material number of the material. A selection condition is determined based on which the material is chosen from the material position. A restriction condition is generated in the restriction object based on the material restriction and the selection condition.
