And 'go to field' also cannot be specified dynamically. But there's still error 102 for 'set next serial value'. I was hoping that having this script step placed before 'set next serial value' would allow me to leave 'specify target field' blank. I don't understand why it's optional but returns an error if it is not used. Why is there a checkbox for 'specify target field'? I see that I receive error 102 (missing field) when I do not specify a target field. Is there a way to dynamically specify the target field? I only see an option for selecting the table and field from a list of existing fields. I am unable to specify the target field by using a variable. Now, I've computed my intended next serial value and would like to assign this to a field whose name I have saved in a variable. For each, it will determine the primary key and then find the maximum value in any record for that primary key field. I'm writing a script that's intended to work for multiple layouts and table occurrences.

Filemaker pro 15 serial