Sometimes you want to give a user the possibility to display the details of a column value with a lookup for this column. This works great when the columns have a value.
But when a column is not editable and not mandatory, the value could be empty. Take for example a table with transactions. The table is not editable and the columns production order and sales order are not mandatory. I want the users to be able to show detail information of the sales order and the production order. When they have a value the lookup works great. If a sales order has no value and I (accidentally) press the lookup, I get a complete list of all the sales orders. I think in this case it’s not necessary and it could take some time when it’s a large table to lookup.
I know it is possible to have a lookup table variant that shows a max number of records for a large table. But it could be easier by just hiding the lookup if the column is empty and not editable.