Hi,
This error
would occur because multiple edge servers have been defined as a federation edge for the SFB online service.
Federation
can only be enabled for a single Edge pool. If you have multiple Edge pools, select one to use as the federating Edge pool and configure federation router for all sites.
To update
federation association from SFB server, please find herefor
more details which applies to SFB server as well.
Kind regards,
Calvin Liu
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