# Real-time Market Data Subscription Error

**URL:** <https://community.tradovate.com/t/real-time-market-data-subscription-error/5621>\
**Category:** API Developers\
**Created:** [September 24, 2022, 1:18pm UTC](https://community.tradovate.com/t/real-time-market-data-subscription-error/5621 "2022-09-24T13:18:46Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Hamid\_Entezami](https://avatars.discourse-cdn.com/v4/letter/h/8c91f0/32.png) [@Hamid\_Entezami](https://community.tradovate.com/u/Hamid_Entezami)\
**Post date:** [September 24, 2022, 1:18pm UTC](https://community.tradovate.com/t/real-time-market-data-subscription-error/5621/1 "2022-09-24T13:18:46Z")

</div>

hello  
i’m using tradovate api/websockets to fetch real time ticks data.  
the api module is bought and market data has been subscribed.  
but it shows the error “ **A real-time market data subscription is required for tick-base charts** ” error text and “NoServicePlan” as error code in the qoute subscribe on websocket response after all.  
what is the problem and what can i do to solve it?