SD-Basic Functions

I've done the following-

Created new a/c group--ZNSH (ship to party) by copying standard 0002

Created a ship-to-party master record (internal) using Tcode XD01

Details--- Customer No. 20 (Name-ABCD), CoCd-SU00(Surya Enterprises)

Created partner function - ZA(Quality Inspector) by copying standard FA

Created partner determination procedure-ZNSH and maintained partner function-ZA

Created new vendor a/c group --ZZ05 by copying standard 0005

Assigned partner function-ZA to a/c group ZZ05

(IMG MM Purchasing Partner Det Define permissible

partner roles for a/c group--select new entries_

Created no.range for vendor-S1 (internal)

Assigned no.range S1 to ZZ05

Created new vendor account using V-11 Tcode

Details---Vendor No. 50 (Name-ABC), CoCd-SU00

Now, when I open the ship to party master record-20 using XD02 Tcode

and maintain partner function ZA and the number 50, and try to save it

gives an error "customer 50 has not been created"

I tried the following--

When I select from the drop down options for customer-20 from XD02, I

don't see the customer ABC

I checked FKO3, the customer 50 is there.

Please help me solve the problem.