What unresolved mapping questions do mean
An unresolved mapping question usually means your team still needs narrower review, clearer field meaning, or better export context before claiming confidence.
That is a signal to preserve the uncertainty honestly, not a reason to flatten it into guessed equivalence just because the field names look familiar.
What unresolved mapping questions do not mean
They do not automatically prove the migration path has failed, and they also do not secretly prove that the mapping will definitely work once someone looks at it later.
The safest reading is that the current confidence boundary is still open and needs guided clarification rather than hidden optimism.