Google Analytics has recently implemented new data retention periods whereby after a set period of time, user-level and event-level data stored by the program is automatically deleted from your Google Analytics account.
These settings take effect on May 25, 2018.
By default this new setting is 26 months but we do have the option to change this to ‘Do not automatically expire’ so the information will be available for you in future.
If you would like this retention period updated in your Google Analytics account, just let us know and we can organise this for you.