Hi @piotr.patrzek1,
Do you mean Jira Entity Properties ( Entity properties ) ?
If yes, Jira Cloud Migration Assistant does not support Jira Entity Properties. We are working on supporting entity property migration as part of app migration path (March Update on Server to Cloud Migrations - #4 by akassab) . Please watch “Cloud Migrations” topic for further updates on this.
Thanks and regards,
Hariharan.