BPM startting with two IDoc Types

Hi All!!

I have designed a BPM starting with two IDocs (MATMAS05 y CLFMAS02). Is designed with two start process in a switch. When one comes, wait a minute for the other. I'm not sure what IDoc comes first to the process, the I can lose data.

Somebody has any idea tto encapsulate the infornmation of the 2 IDocs without a ZIDoc?

Thanks and regards,

Manuel Míguez.