What is the problem... it appears your question was cut-off or you clicked on SEND by accident while writing it..

>Situation :
>a form modifying a parent table with a ono_to_one relation to a child table (eg INVOICE_HEADER related to CUSTOMER using CUST_ID)
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>How can I force the CUSTOMER table to change to the correct record when the CUST_ID is changed (interactively or programmatically) on the form. As soon as I change to another record in the parenttable the customertable moves with it, that is not the problem ...