# Query CMS to Get Particular Data source: https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/index.md The use cases in this section provide various scenarios for retrieving different information stored in the CMS. Note: If some field has no value stored in the CMS, the API will not return the field in the response. Each use case provides the following information:
* A brief description of the use case * A sequence diagram * A detailed explanation * A part of API specification with the endpoint(s) used in the use case The following use cases are provided in this section: | Use case | OperationId | Method | URI | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------|--------|------------------------------------------------------------| | [Retrieve Client data](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-client-data/index.md) | getClient | GET | /clients/{client_id} | | [Retrieve Account contract data](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-acct-con-data/index.md) | getAccountContract | GET | /accounts/{account_contract_id} | | [Retrieve a list of Card Plastics](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-list-of-card-plastics/index.md) | getCardPlastics | GET | /cards/{card_contract_id}/plastics | | [Retrieve CVC2](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-cvc2/index.md) | getCVC | POST | /cards/{card_contract_id}/card-verification-codes/searches | | [Retrieve a list of Account Contracts for a Client](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-list-acc-contracts-for-client/index.md) | getAccountContractsByClient | GET | /clients/{client_id}/account-contracts | | [Retrieve a list of Card Contracts for a Client](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-list-card-contracts-for-client/index.md) | getCardContractsByClient | GET | /clients/{client_id}/card-contracts | | [Retrieve technical Accounts](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-technical-acc/index.md) | getTechnicalAccounts | GET | /contracts/{contract_id}/technical-accounts | | [Retrieve Contract tree structure summary](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-con-tree-struct-summary/index.md) | getContractTreeSummary | GET | /contracts/{contract_id}/tree-summaries | | [Retrieve Account Contract or Card Contract status](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-acc-or-card-con-status/index.md) | getAccountContractStatus | GET | /accounts/{account_contract_id}/statuses | | | getCardContractStatus | GET | /cards/{card_contract_id}/statuses | | [Retrieve Subaccounts](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-subacc/index.md) | getSubAccountContracts | GET | /accounts/{account_contract_id}/sub-accounts | | [Retrieve a list of Card Contracts for an Account Contract](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-list-card-contracts-for-acc-con/index.md) | getCardContractsByAccount | GET | /accounts/{account_contract_id}/card-contracts | | [Retrieve Custom Data](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-custom-data/index.md) | getClientCustomData | GET | /clients/{client_id}/custom-data/{tag_name} | | | getContractCustomData | GET | /contracts/{contract_id}/custom-data/{tag_name} | | [Retrieve Addresses](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-addresses/index.md) | getClientAddresses | GET | /clients/{client_id}/addresses | | | getContractAddresses | GET | /contracts/{contract_id}/addresses | | [Retrieve financial information](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-fin-info/index.md) | getContractFinancials | GET | /contracts/{contract_id}/financials | | [Retrieve Contract's balances](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-con-balances/index.md) | getContractBalances | GET | /contracts/{contract_id}/balances | | [Retrieve authentication parameter's value](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-auth-para-value/index.md) | getAuthenticationParameterValue | GET | /contracts/{contract_id}/authentication-parameter-values | | [Retrieve Tariffs](https://developer.mastercard.com/mastercard-processing-core/documentation/use-cases/data-management/query-cms-get-particular-data/retrieve-tariffs/index.md) | getContractTariffData | GET | /contracts/{contract_id}/tariff-data |