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docs(microsoft): document batchGroupLookups option#216

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docs(microsoft): document batchGroupLookups option#216
XDanny322 wants to merge 1 commit into
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The Microsoft connector's group-name resolution sends every group ID a user
belongs to in a single request to Microsoft Graph's
directoryObjects/getByIds endpoint. That endpoint caps requests at 1000 IDs,
so users in more than 1000 groups fail to log in.

dexidp/dex#4833 fixes this by adding a batchGroupLookups config option that
splits the lookup into batches of 1000 IDs. It's opt-in (default off) rather
than always-on.

@XDanny322 XDanny322 force-pushed the main branch 3 times, most recently from 95a1c48 to dddb220 Compare July 7, 2026 15:10
…and configuration details

xref dexidp/dex#4833

Signed-off-by: Danny Lai <xdanny322@gmail.com>
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