Convert GUID_X16 to GUID_C22

Hi,

There is a function module in SAP, GUID_CONVERT which converts the GUIDs from x16 to c22 and vice-versa. Is there a possibility to put the logic in HANA procedure?

We are trying to get MATNR from MATID / MATKEY in EWM. We are using EWM on HANA. There is a function module in SAP, CONVERSION_EXIT_MDLPD_OUTPUT which takes the GUID and returns Material Number. We would like to have the similar logic in HANA model / procedure.

Is there any way to achieve this?

Thanks,

Aamod