# About subscription point

**URL:** <https://dmap-community.ductus.global/t/about-subscription-point/339>\
**Category:** CDB and CDB API\
**Created:** [January 4, 2016, 6:48am UTC](https://dmap-community.ductus.global/t/about-subscription-point/339 "2016-01-04T06:48:42Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![xia](https://avatars.discourse-cdn.com/v4/letter/x/bb73d2/32.png) [@xia](https://dmap-community.ductus.global/u/xia)\
**Post date:** [January 4, 2016, 6:48am UTC](https://dmap-community.ductus.global/t/about-subscription-point/339/1 "2016-01-04T06:48:42Z")

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Can i call function cdb\_subscribe to add a new point after cdb\_subscribe\_done() called?  
if no, how can i add a new subscription point after cdb\_subscribe\_done() called?

thanks.

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<div class="post-metadata">

**Author:** ![jjohansson](https://avatars.discourse-cdn.com/v4/letter/j/b782af/32.png) [@jjohansson](https://dmap-community.ductus.global/u/jjohansson)\
**Post date:** [January 4, 2016, 3:30pm UTC](https://dmap-community.ductus.global/t/about-subscription-point/339/2 "2016-01-04T15:30:14Z")

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It’s not possible to call cdb\_subscribe() after cdb\_subscribe\_done().

If you want to add subscriptions after you have called cdb\_subscribe\_done() you must restart your application and issue all subscribe calls, including the one(s) you want to add, again.