VL10B background job: Unable to create Delivery

Hi,

I am trying to create delivery for STOs through a background job for VL10B. I have created the variant using VL10BATCH. I am scheduling the program RVV50R10C with the variant i created in VL10BATCH through SM36. Once the background job finishes, from the spool content, I can see the list of STOs for which delivery should be created. But there is no delivery gets created for the STOs.

I can create deliveries for those STOs in the foreground using VL10B. Can somebody suggest why system does not created deliveries for STO in the background? Am I missing any settings while scheduling the program in the background?

Thanks

SBS