I've created at Student database and on the layout I've created a portal to display all zipcodes and cities from another table to be able to edit or add new ones. When trying to add a new city, I get the error message,
This action cannot be performed because the field is not modifiable error message.
- My relationship is based on 2 calculation fields with the word "key".
- My relationship allows to add and delete records.
- I can place my curser in the field and type in it but when I exit the field I get the error message.
I've never experienced this error when creating a "key" relationship. I'm using Filemaker 12.
Any help would be greatly appreciated.