Can't migrate custom fields

[prokam]

our team created custom work items like Final QA and it consists bunch of custom fields like Style ID. I cant transfer custom fields. work items themselve are transferred but their custom fields no. Could someone help me with that?

[MrHinsh]

All fields from the source are trafered to the aterget if the "Refname" matches. If it does not match then you will need to use a FieldMapping.

• FieldMappingTool

[prokam]

1. should which option i need to use? FieldToFieldMap ?
2. I should write it inside of config file or it should be run separately?