ECC to SCM Vendor Master Transfer Issue

Hi,

I am trying to transfer newly created vendor master from SAP ECC to SCM. I have created Integration model (T-code:CFM1) for just one vendor and selected Create Loc./BP = 2 (Create Both). After activating Integration model (t-code: CFM2) outbound queue is failing. It's giving error "Internal error in RFCG, US. RFC: Connection error". Attaching snap.

Please note that, I was successfully able to transfer product master from SAP ECC to SCM without any issues. I also tested RFC connecting between both system and it's working.

Any help/suggestion ?

Regards,

Ravi