Error in MIR7 - Different Material Vendor planned for del. costs item in PO

Dear All,

We getting error during MIR7.

We add two freight condtion ZFRO and ZFRT in purchase order  as below :

ZFRO = we have add Rs. 350 against freight to Vendor(MATERIAL VENDOR)

ZFRT =  We have add Rs. 100 for local freight which is paid to FREIGHT VENDOR directly (cash payment) i.e. paid for Transporter's Godown to our factory.

Now during MIGO, store department has enter  as :

1. ZFRT (Freight Vendor - FREIGHT VENDOR)

2. ZFRO (Freight Vendor - MATERIAL VENDOR)

Now during MIR7 we are getting following error :

Different Material Vendor 300255 planned for del. costs item in PO 4500028018

(300255 is FREIGHT VENDOR which is at Number 1 in freight tab of MIGO)

Thanks and Regards,

Nirav