# DeviceID values changed for Aggregate

**URL:** <https://forum.getodk.org/t/deviceid-values-changed-for-aggregate/33065>\
**Category:** Support\
**Created:** [April 4, 2021, 6:25pm UTC](https://forum.getodk.org/t/deviceid-values-changed-for-aggregate/33065 "2021-04-04T18:25:49Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Saad](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/saad/32/4537_2.png) [@Saad](https://forum.getodk.org/u/Saad)\
**Post date:** [April 4, 2021, 6:25pm UTC](https://forum.getodk.org/t/deviceid-values-changed-for-aggregate/33065/1 "2021-04-04T18:25:49Z")

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Hi,

Recently, I have seen deviceID value changing from simple values to a new syntax "collect:fYvbMLyBab49EEKc". What changed on the Collect side, and when?

Thanks,  
Saad

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**Author:** ![LN](https://getodk.b-cdn.net/user_avatar/forum.getodk.org/ln/32/1605_2.png) [@LN](https://forum.getodk.org/u/LN)\
**Post date:** [April 4, 2021, 7:57pm UTC](https://forum.getodk.org/t/deviceid-values-changed-for-aggregate/33065/2 "2021-04-04T19:57:02Z")

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Apps in the Play Store are no longer allowed to access fixed identifiers such as IMEI.

Please make sure you watch [community announcements](https://forum.getodk.org/c/announcements/11). See the warning section [here](https://forum.getodk.org/t/community-update-2020-09-29/30246) for when this was announced broadly and details [in this thread](https://forum.getodk.org/t/collect-will-need-to-stop-using-imei-as-deviceid-and-making-simserial-and-subscriberid-available/24157).