PD Layer error and termination while registering vendor using WebDYnpro application wda_e_suco_sreg

Hey Experts,

We have configured the supplier qualification process in SRM on SRM 7 EhP2

Customizing switch SRM_701_SUCO_SUP_REG is already activated

When trying to register a supplier using the WebDYnpro application wda_e_suco_sreg,  We are getting the following error message:

"An error occurred in the PD layer; transaction terminated"

Thanks in advance for helping us out.

Regards..!