query problem

[Roelant]

I have a query coming from to tables. One table CUS and one Docs the query takes info from the to tables related witch customer number. Now I can’t change data in the fields of the query, how is that possible. (I have a query with Art en Docs there I can change de data in the fields)
Help me please.

 

[Jon K]

The primary table needs a unique index for the update.

In table design, set Customer Number in table CUS as the Primary Key, or index on Customer Number as Yes (No Duplicates)