# \#proof-of-possession **URL:** https://community.cumulocity.com/tag/proof-of-possession/107.md [Latest](https://community.cumulocity.com/latest.md) · [Categories](https://community.cumulocity.com/categories.md) · [Tags](https://community.cumulocity.com/tags.md) --- ## [How to verify incomplete device certificates using verification code](https://community.cumulocity.com/t/how-to-verify-incomplete-device-certificates-using-verification-code/7772)
**Author:** [@Marco\_Stoffel](https://community.cumulocity.com/u/Marco_Stoffel)\ **Replies:** 0\ **Last updated:** [May 9, 2023, 2:27pm UTC](https://community.cumulocity.com/t/how-to-verify-incomplete-device-certificates-using-verification-code/7772 "2023-05-09T14:27:34Z")
Product/components used and version/fix level are you on: Cumulocity 10.16 Detailed explanation of the problem: With 10.16 release previously valid device certificates get the incomplete status due to the new proof of p…