Issue:

In Table maintenance when adding a new row or editing an existing row, the Save button is disabled.

 

Reason:

If a mandatory value is missing in one of the records returned by the search, then the Save button is disabled when editing any of the records.

 

Solution:

Enter a value in the empty mandatory field and this will enable the Save button.

If there is an exceptionally large amount of data, then the invalid record may not be directly visible on the list.

In that case, click the column header on a mandatory column (indicated by a star) to sort the values in that column.

Empty fields are sorted on top and now you can update the missing value.