1. A print inspection apparatus which inspects a print product of variable printing, the print inspection apparatus comprising: a combining unit configured to obtain an object which is stored in a storage and used in the variable printing and to generate a combined image by combining the obtained object; an image setting unit configured to, in a case where the combined image is normally generated by the combining unit, set the combined image to both of a print image and a collation image, and in a case where the combined image is not normally generated, set a different image to each of the print image and the collation image; a printing unit configured to generate the print product by printing the print image set by the image setting unit; a reading unit configured to generate image data by reading the print product; and a comparison unit configured to compare image data generated by the reading unit with the collation image set by the image setting unit to perform inspection of the print product.