Reference master
------------------
fields
{
field(1; "Consumer Id"; Code[20])
{
DataClassification = ToBeClassified;
}
Extended table (21)
--------------------
field(50000; "Consumer Id"; Code[20])
{
DataClassification = ToBeClassified;
TableRelation = "BGS_Consumer Master2"."Consumer Id" WHERE("Customer no" = FIELD("Customer No."));
}