Slack integration - Hitting Slack rate limit when using API's to create alerts gives wrong error message

Environment SaaS ([ Steps to Reproduce 1. Create/edit multiple alerts through [ 2. make sure you set a slack action step to a channel Expected Result When Slack is rate limiting the requests it should be clear within Sentry users why it has been failing. Actual Result Error message is: (ERROR): failed to update transactionsVolume, 400 given. Received: {"nonFieldErrors":\["Could not retrieve Slack channel information."\]} While internally we get "The Slack API responded with {'ok': False, 'error': 'ratelimited'}" We likely will need to add a rate limit check [here](< Product Area Settings - Integrations Link *No response* DSN *No response* Version *No response* ┆Issue is synchronized with this [Jira Improvement](< by [Unito](< We want to define a set of [lightweight metrics](< that SDKs can automatically collect for e.g. framework, language or platform, focusing only on signals that do NOT overla…