# Build webhook to slack incorrect, may not have been deleted in legacy UI **URL:** \ **Category:** Build Environment\ **Tags:** slack\ **Created:** [October 16, 2020, 12:36pm UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801 "2020-10-16T12:36:12Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![williamfalconeruk](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/williamfalconeruk/32/25817_2.png) [@williamfalconeruk](https://discuss.circleci.com/u/williamfalconeruk)\ **Post date:** [October 16, 2020, 12:36pm UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/1 "2020-10-16T12:36:12Z")
Hi, I’m having an issue whereby i’ve just taken over a dormant project which is running circleci. We are having issues with the webhooks. when a build fails, it appears to be going to an old channel, even though a new slack integration webhook has been set up point to a different channel, which was recently created. I think this might be related to the fact that we’ve not touched the system for a while then the new UI switched over. can someone assist me with this? Kind regards, William Falconer ---
**Author:** ![thekatertot](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/thekatertot/32/25169_2.png) [@thekatertot](https://discuss.circleci.com/u/thekatertot)\ **Post date:** [October 19, 2020, 5:01pm UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/2 "2020-10-19T17:01:13Z")
You’re right–you have to disable the legacy Slack integration. We have [a support article](https://support.circleci.com/hc/en-us/articles/360049698732-How-to-disable-legacy-Slack-integration) with instructions. Let me know if that works! ---
**Author:** ![williamfalconeruk](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/williamfalconeruk/32/25817_2.png) [@williamfalconeruk](https://discuss.circleci.com/u/williamfalconeruk)\ **Post date:** [October 19, 2020, 5:26pm UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/3 "2020-10-19T17:26:06Z")
That’s great - I’ll take a look in the morning! ---
**Author:** ![williamfalconeruk](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/williamfalconeruk/32/25817_2.png) [@williamfalconeruk](https://discuss.circleci.com/u/williamfalconeruk)\ **Post date:** [October 20, 2020, 8:17am UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/4 "2020-10-20T08:17:04Z")
Thanks - that solved the issue, really appreciated! ---
**Author:** ![williamfalconeruk](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/williamfalconeruk/32/25817_2.png) [@williamfalconeruk](https://discuss.circleci.com/u/williamfalconeruk)\ **Post date:** [October 20, 2020, 9:11am UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/5 "2020-10-20T09:11:24Z")
Well - not quite…the build fails are no longer appearing in either channel. I wonder if we need to do something else? note the new SLACK\_WEBHOOK env var is set already. ---
**Author:** ![williamfalconeruk](https://sea2.discourse-cdn.com/circleci/user_avatar/discuss.circleci.com/williamfalconeruk/32/25817_2.png) [@williamfalconeruk](https://discuss.circleci.com/u/williamfalconeruk)\ **Post date:** [October 28, 2020, 1:08pm UTC](https://discuss.circleci.com/t/build-webhook-to-slack-incorrect-may-not-have-been-deleted-in-legacy-ui/37801/6 "2020-10-28T13:08:36Z")
So we reverted to using the legacy hook, with a different url for now, as without it we could not see the failed or successful build notifications.