BOL/Rappid Application on Ztable

Hi Experts,

I have created ztable with field1 and field2 as key fields, then created rappid application on this table, so BOL got created on it.

Now when I tried to create the root entity it getting created, but if I tried to create this root entity in multiple sessions then due to uniqueness of the key fields it getting failed and says entry already exists in the ztable.

so how to over ride it?

I am thinking like adding GUID to existing key fields of ztable will resolve the issue, then how I can change the existing BOL on this Ztable with GUID?

because create_guid will always creates the new guid so it is always unique in system will helpful to use as one of key fields of root entity as well table,

so primary key combination becomes unique in system and create will be successful always.

Thanks,

Vij