Issue connecting from NWBC to SAP App server

Hello All,

We having activated MDG for material master in our sandbox environment. I am able to login into the SAP_MDGM_MENU_03 (Master Data Governance for Material: Menu) successfully.

But once I go in, the other functionality are not working. For. e.g. Change material, search material. On clicking any of the links it gives a HTTP: 500 server error.

I went to ST22 and checked the dump and it gave the following message - Runtime error GETWA_NOT_ASSIGNED

Also when going into SM59 transaction it gives a message - RFC call back check not secure.

Please provide any pointers.

Thank you

Lakshminarayanan