I want to change the attribute of field or want to add new
field in existing PF but condition is format level
identifier should not change, is it possible?

Answer Posted / jimbob

It depends on what attribute you are changing. If you change
the text, for example, then there is no change to the format
level id. But if you change the field's length or decimal
places, for example, then the format level id is definitely
changed.

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