Assigning plant to an sales organization - distribution channel means this sales organization - distribution channel
can sell finish goods or spare parts from the plant assigned. Below shows how to make it step by step:
Step1: Enterprise Structure--->Assignment--->Sales and Distribution
--->Assign sales organization - distribution channel - plant--->click 'Clock' icon

Step2: choose sales organization/distribution channel, and then click Assign

Step3: choose plants

Step4: save it
