One of the customer whom we migrated to Office 365 quite a while back reported an issue where they were unable to delete certain calendar event from Outlook as well as OWA with the following error

Outlook Error

“The message store has reached its maximum size. to reduce the amount of data in this message store, select some items that you no longer need, permanently (Shift + del) delete them.”

OWA Error

The action couldn’t be completed. An error occurred on the server.



Upon through investigation and some work with Office 365 support we found out that this issue was because Litigation Hold

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An automobile enthusiast at heart and computer geek by profession, started my Career with MS in 2005.Left Jobs and started Pledge Technologies (the parent company to Grishbi) back in 2009.We have been providing IT consulting to various Small and Medium businesses across US and UK since then.Our company specialises in Microsoft Server technologies like AD, Exchange, the rest and with numerous Office 365 migrations under our belt, we quite an expert with that too. Whatever we learn in our day to day life, we share it back on Grishbi as a Thank for all the love and support our customers have given us.