You can label up to four user-defined fields that are displayed on the Master Contract window. The first two user-defined fields are lookup fields. If you chose to validate the first and second user-defined fields in the Location window during setup, lookup windows will be attached to the fields and users will be prompted before adding to the lookup data. See Choosing Service Options.
Select Microsoft Dynamics GP > Tools > Setup > Service Management > User-Defined Label Setup > Master Contract. The first two user-defined fields are lookup fields.
Enter the field labels. You may want to clear "User Defined" from fields you do not use.
Select Save.