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The Post flow error card block lives in the Developer palette category. Trigger runtime flow errors to test error handling. Meridian team only. This block is only visible to Meridian team accounts in the builder palette.

What it does

Intentionally triggers a runtime flow error card in Discord to test error handling UX.

Configuration

Open the block in the builder sidebar to configure these fields.

highlight_target

Type: block-reference. Required. Block highlighted when users click Highlight in Discord.

error_detail

Type: string. Code-style error body text.

destination

Type: string. Where the error card appears. Accepted values: current, channel.

Important

  • Meridian team palette only. Do not use in production user flows.

See also

  • Developer — Browse all blocks in the Developer category.
Last modified on June 6, 2026