Hi,
What Sids will be showing in target user's access token?
The answer is Sid of target domain local group + Sidhistory both
A Windows security token can hold a maximum of 1,023 sIDs, including sIDHistory and group sIDs.
You can refer to the following article for more details:
Using SID History to Preserve Resource Access
inter-forest-sidhistory-migration-with-admt
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