ExternalAccesses plug-ins created for versions of FileMaker Pro prior to 7.0 and uses the syntax External(“function name”, parameter), where function name is in quotes and is the name of an external function.nameOfFunction - the name of the external functionparameter - the parameter(s) required by the external function. A parameter is required, even if it’s only 0.Plug-ins created for FileMaker Pro version 7.0 and later do not use the External(“function name”, parameter) syntax. For more information, see External functions.