IDOC not receiving in XI

Hi -

Using PI 7.0 and checked all the configurations and read all the related blogs but i don't see the IDOC coming into XI.

Checked the SM58 on R3 and does not show any errors.

I checked the WE02 on XI system and shows a status of 60 and 56. Status 60 says "Basic Type MATMAS05 does not exist" which is true because it does not exist on the XI system but exists on the r3 system.

All the ports on xi and r3 system seem to be fine. i pushed the idoc and shows a status '03' on the r3 side.

Any tips/ideas to solve the issue are greatly appreciated.

Thanks,

Tirumal