Cannot decrypt message error

Hi,

We have configured AS2 adapter and when partner sends message with 3DES algorithm we are getting error that message decryption failed. When the partner changed the encryption algorithm to DES it is working fine.

Please let us know how to generate key in PI NWA with 3DES algorithm.

note: we have applied SAP Note 1915999 already. we are getting error only for 3DES.

Thanks,

Prudhvi