my ISO drawing name is made up of two custom fields, Model No. and line number so en example would be P500001-123456.DWG. When I run iso batch the continuation is showing the line reference instead of the drawing number as continuation so I am getting CONT ON 1"-P-456789-SS1 instead of P500001-456789. I changed the Continuation Name Style in iconfig to Drawing Identifier but doesn't make a difference. Any ideas on how to fix this?

why dont you just make the line number in cadworx be "P500001-456789" and not use custom fields?

we eventually used the line number field to show the isometric number but we had to create a custom field then to show the full line number

This can be done by post-processing with ISOWorx.