# O365 Group Members
Adds or removes owners and members of a Microsoft 365 group by processing rows from an Excel file.
SharePoint Online only. This handler is not available in SharePoint 2016 builds.
Filename pattern: filename must contain o365groupmember (case-insensitive).
Example: 20240115 o365groupmember update.xlsx
# Columns
| Name | Required | Description |
|---|---|---|
| MatterCode | Conditional | Matter code used to locate the associated Microsoft 365 group. Required when Url is not provided. |
| Url | Conditional | URL of the SharePoint site associated with the group. Required when MatterCode is not provided. |
| OwnerAdd / OwnersAdd / AddOwner / AddOwners | No | Semicolon-separated list of email addresses to add as group owners. |
| OwnerRemove / OwnersRemove / RemoveOwner / RemoveOwners | No | Semicolon-separated list of email addresses to remove from group owners. |
| MemberAdd / AddMember / AddMembers | No | Semicolon-separated list of email addresses to add as group members. |
| MemberRemove / MembersRemove / RemoveMember / RemoveMembers | No | Semicolon-separated list of email addresses to remove from group members. |
Either MatterCode or Url must be provided.
# Behavior
The handler locates the Microsoft 365 group associated with the matter (by MatterCode) or the site (by Url). If no group is found, the row fails.
Owner and member additions and removals are applied in order: add owners → remove owners → add members → remove members.
# Related links
- Group Set handler — create or configure SharePoint groups
- Matter List handler — update matter list entries