This article discusses this eConnect error,
Sql procedure error codes returned:
Error Number = 380 Stored Procedure= taPoHdr Error Description = Purchase Address ID (VADCDPAD) does not exist in the Vendor Address Table - PM00300
Node Identifier Parameters: taPoHdr
PONUMBER = PO16/01919
VENDORID = VADGLOBAL
Related Error Code Parameters for Node : taPoHdr
VADCDPAD = Note: This parameter was not passed in, no value for the parameter will be returned.
<taPoHdr>
<PONUMBER>PO16/01919</PONUMBER>
<VENDORID>VADGLOBAL</VENDORID>
<UPDATEIFEXISTS>1</UPDATEIFEXISTS>
</taPoHdr>