SUP 1.2 mbo table is deleting every 1 hour

Hi Experts,

We are currently supporting for SUP 1.2 to an client. We are faing an issue like every 1 hour an MBO table "xxx" is getting deleted.

As we are using sap ecc as back-end system, we troughly checked the ECC system RFC triggers and DCN triggers. There is no delete request is generating from the ECC system.

Is there any intermediate call or automatic trigger is generateing in SUP it self..?

Please help me  with your valiable ideas to solve the issue

Thanks & Regards

Rabin D