Non-transitory computer-readable storage medium storing sewing data generation program, and sewing data generation device

A computer-readable medium stores instructions for a processor in a sewing data generation device. When the instructions are executed, the processor acquires pattern data of embroidery pattern including partial patterns using different thread. If first common data indicating the same thread is included in first data of a first embroidery pattern and second data of a second embroidery pattern, the processor sets a sewing order in the first data, while causing the partial pattern using the thread of the first common data to be the partial pattern that is last in the sewing order in the first embroidery pattern, and sets a sewing order in the second data, while causing the partial pattern using the thread of the first common data to be the partial pattern that is first in the sewing order in the second embroidery pattern that is the embroidery pattern subsequently to the first embroidery pattern.