better-auth-organization-best-practices

Add the organization() plugin to your Better Auth server config and organizationClient() to your client config, then run npx @better-auth/cli migrate to create the organization, member, and invitation tables. You can then create organizations via authClient.organization.create.

Pass a sendInvitationEmail callback to the organization plugin options, which receives the email, organization, inviter, and invitation data. Inside it, call your own email service with a link containing the invitation ID for the recipient to accept.

Yes, enable dynamicAccessControl in the organization plugin to create custom roles with granular permissions via createRole. Default roles owner, admin, and member cannot be deleted, and roles assigned to members must be reassigned before deletion.

The last owner of an organization cannot be removed, leave, or have the owner role revoked. Transfer ownership first by updating another member's role to owner, then demote or remove the previous owner.

Yes, use organizationLimit and membershipLimit options, which accept static numbers or async functions receiving the user or organization. This lets you grant higher limits based on attributes like a premium plan.