>**** Init of my form
>
>SELECT order_information
>SET ORDER TO orderid IN Order_Information
>
>SELECT order_detail
>
>SET ORDER TO TAG orderid IN order_detail
>SET RELATION TO orderid INTO order_detail IN order_information
>LOCATE
>
>***************

Fred,

Your LOCATE is happening in the worng work area. You can try this;

**** Init of my form

SELECT order_detail

SET ORDER TO TAG orderid && IN order_detail you don't need this IN clause

SELECT order_information
SET ORDER TO orderid && IN Order_Information Nor this one


SET RELATION TO orderid INTO order_detail && IN order_information nor this one
LOCATE

***************