Using VI to update Projected Demand

SUGGESTED

Hello all. I am attempting to use Visual Integrator to update my company's projected demands on the fly. I am attempting to import into the MP.SCHED table. The problem I'm running into is that the import fails on the CUST_NUMBER field if this is left blank. We don't use projected demand based on customers. Am I using the wrong table? Is there any way to skip having to have the CUST_NUMBER field populated with anything but still complete an import of data into projected demand?

Thank you for any help you can provide with this.