# AppRecommendation Schema ```txt https://timelimit.io/SerializedAppLogicAction#/definitions/SerializedInstalledApp/properties/recommendation ``` | Abstract | Extensible | Status | Identifiable | Custom Properties | Additional Properties | Access Restrictions | Defined In | | :------------------ | ---------- | -------------- | ----------------------- | :---------------- | --------------------- | ------------------- | ----------------------------------------------------------------------------------------------------- | | Can be instantiated | No | Unknown status | Unknown identifiability | Forbidden | Allowed | none | [SerializedAppLogicAction.schema.json\*](SerializedAppLogicAction.schema.json "open original schema") | ## recommendation Type `string` ([AppRecommendation](serializedapplogicaction-definitions-serializedinstalledapp-properties-apprecommendation.md)) ## recommendation Constraints **enum**: the value of this property must be equal to one of the following values: | Value | Explanation | | :------------ | ----------- | | `"blacklist"` | | | `"none"` | | | `"whitelist"` | |