How to map the fields with some values which are not present in your source while migrating the work items

[Chandu001729]

I am migrating my entire ADO work items from one project to another in same org with different process, i want to update some field values in the destination while migrating those which are not present in the Source side.

Which FieldMaptype i need to use in my config to achieve this and how to update the values for the fields.

I have the below two Fields and the values need to be updated as same.

1. Project Related Areas: PPM - it is for all work items
2. Project Version: PPM - it is for all Defects

Thanks in Advance

@MrHinsh need your inputs or assistance

[MrHinsh]

What have you tried?

Can you paste your results here?

[Chandu001729]

I am confused on what need to be tried for this and seeking for help

[MrHinsh]

What field maps have you tried from the documentation, and which behaviour is inconsistent with your expectations?

[Chandu001729]

I haven't tried any field maps, i am seeking for help which will guide me to choose the right thing for migration instead of testing each and every field