Using FileMaker Pro Advanced > About custom functions (FileMaker Pro Advanced) > Importing custom functions (FileMaker Pro Advanced)
Importing custom functions (FileMaker Pro Advanced)
When you import a custom function, FileMaker Pro automatically resolves dependencies when custom functions call other custom functions.
To import custom functions:
1. Open the file in which you want to import the custom functions.
2. Choose File menu > Manage > Custom Functions.
3. In the Manage Custom Functions dialog box, click Import.
4. Open the file that contains the custom functions you want to import.
5. Enter an account name and password if asked, then click OK.
For more information, see Opening files protected with passwords.
6. In the Import Custom Functions dialog box, select the custom functions you want to import.
7. Click OK.
The Import Summary dialog box appears.
8. Click Open Log File to view the import log file, or click OK to close the Import Summary dialog box.
Note  The custom function you imported appears at the bottom of the list. If FileMaker Pro determines this function is invalid in the context of the target file (for example, a dependent function, field, or calculation is missing from the target file or the function contains an invalid field type reference), the imported function is enclosed in comment characters (/*<function_definition>*/). For more information, see Custom Function dependency rules (FileMaker Pro Advanced).
Note  If you cancel an import in progress before it completes, any functions imported before you cancel must be manually removed from the target file.
Related topics 
About custom functions (FileMaker Pro Advanced)
Using custom functions (FileMaker Pro Advanced)
Functions reference (category list)
Functions reference (alphabetical list)