Event ID - 9554

Event Id9554
DescriptionUnable to update Mailbox SD in the DS. Mailbox GUID:f911a4c2-42de-42c1-8d97-abef7766063c. Error Code 0x80040102
Event InformationAccording to Microsoft:
This behavior may occur after you modify permissions on a mailbox.
Step 1: Locate the Mailbox that Causes this Issue.
Step 2: Change Mailbox Permissions.
Reference LinksXADM: Event ID 9554 Appears After You Modify Mailbox Permissions

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