# Fundamental Concepts - [License Key Fields Definitions](https://docs.soraco.co/docs/fundamental-concepts/license-key-fields-definitions.md) - [License Key Types](https://docs.soraco.co/docs/fundamental-concepts/license-key-types.md) - [Length of QLM license keys](https://docs.soraco.co/docs/fundamental-concepts/length-of-qlm-license-keys.md) - [OrderStatus field](https://docs.soraco.co/docs/fundamental-concepts/orderstatus-field.md) - [License Model](https://docs.soraco.co/docs/fundamental-concepts/license-model-1.md) - [License Model v17+](https://docs.soraco.co/docs/fundamental-concepts/qlm-license-models.md) - [Computer Identifier (ComputerID) requirements](https://docs.soraco.co/docs/fundamental-concepts/computer-identifier-computerid-requirements.md) - [License Binding](https://docs.soraco.co/docs/fundamental-concepts/licensebinding.md) - [Variable License Binding](https://docs.soraco.co/docs/fundamental-concepts/variablelicensebinding.md) - [Product Features](https://docs.soraco.co/docs/fundamental-concepts/qlm-features.md) - [Product Properties](https://docs.soraco.co/docs/fundamental-concepts/product-properties.md) - [Data Types](https://docs.soraco.co/docs/fundamental-concepts/product-properties/data-types.md) - [Enforce Product Properties](https://docs.soraco.co/docs/fundamental-concepts/product-properties/enforce-product-properties.md) - [CommunicationEncryptionKey and AdminEncryptionKey](https://docs.soraco.co/docs/fundamental-concepts/communicationencryptionkey-and-adminencryptionkey.md) - [Search macros](https://docs.soraco.co/docs/fundamental-concepts/definition-of-the-macros-that-can-be-used-in-searches.md) - [Differences between QLM Express and QLM Pro](https://docs.soraco.co/docs/fundamental-concepts/whats-the-difference-between-qlm-express-and-qlm-pro.md) - [Differences between QLM Pro and Enterprise](https://docs.soraco.co/docs/fundamental-concepts/what-is-the-difference-between-qlm-pro-and-enterprise.md) - [Server-side license validation](https://docs.soraco.co/docs/fundamental-concepts/server-side-license-validation.md) - [Online activation](https://docs.soraco.co/docs/fundamental-concepts/how-does-online-activation-work.md) - [Online Activation with basic authentication (user/password)](https://docs.soraco.co/docs/fundamental-concepts/how-does-online-activation-work/online-activation-with-basic-authentication-user-password.md) - [Online Activation By Authorization Code](https://docs.soraco.co/docs/fundamental-concepts/how-does-online-activation-work/online-activation-by-authorization-code.md) - [Offline activation](https://docs.soraco.co/docs/fundamental-concepts/how-does-offline-activation-work.md) - [Offine Activation of License Keys](https://docs.soraco.co/docs/fundamental-concepts/how-does-offline-activation-work/offine-activation-of-license-keys.md) - [Offline activation of License Files](https://docs.soraco.co/docs/fundamental-concepts/how-does-offline-activation-work/offline-activation-of-cross-platform-apps-with-license-files.md) - [Deactivation Verification Code for Offline Deactivation](https://docs.soraco.co/docs/fundamental-concepts/how-does-offline-activation-work/deactivation-verification-code-for-offline-deactivation.md) - [QLM Timer](https://docs.soraco.co/docs/fundamental-concepts/qlm-timer.md) - [Maintenance Plan](https://docs.soraco.co/docs/fundamental-concepts/qlm-maintenance-plan.md) - [How to implement software subscription](https://docs.soraco.co/docs/fundamental-concepts/how-to-implement-software-subscription.md) - [Subscription workflow when integrated with an eCommerce Provider](https://docs.soraco.co/docs/fundamental-concepts/subscription-workflow-when-integrated-with-an-ecommerce-provider.md) - [Check for Updates](https://docs.soraco.co/docs/fundamental-concepts/how-does-the-check-for-updates-feature-work.md) - [License Activation Count](https://docs.soraco.co/docs/fundamental-concepts/license-activation-count.md) - [Organizations](https://docs.soraco.co/docs/fundamental-concepts/organizations.md) - [History log](https://docs.soraco.co/docs/fundamental-concepts/qlm-history-log.md) - [WebHooks](https://docs.soraco.co/docs/fundamental-concepts/qlm-webhooks.md) - [Analytics](https://docs.soraco.co/docs/fundamental-concepts/qlm-enterprise-analytics.md) - [User Groups](https://docs.soraco.co/docs/fundamental-concepts/user-groups.md) - [Product Bundles](https://docs.soraco.co/docs/fundamental-concepts/product-bundles.md) - [Customer User Account](https://docs.soraco.co/docs/fundamental-concepts/qlm-customer-user-account.md) - [Server Error Codes (EServerErrorCode)](https://docs.soraco.co/docs/fundamental-concepts/server-error-codes-eservererrorcode.md) - [.NET 6/7/8/9, .NET Core and .NET Standard Support](https://docs.soraco.co/docs/fundamental-concepts/.net-6-7-8-.net-core-and-.net-standard-support.md) --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. 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