Destructive

Manage Campaign Variants

List, add, or remove campaign message arms. Sequence step 0 and message/media follow-ups are supported; unsupported paths fail with VARIANTS_NOT_APPLIED before any write.

manage_variantsDELETE/api/v1/campaigns/{campaign_id}/steps/{step_index}/variants/{variant_label}

Get started View docs

crispy — bash

Example prompt: List the stored variants on step 0 of gtm-engineers-apr26

{
  "success": true,
  "variants": [],
  "count": 0
}

Permission scope

core

Access

Destructive

What you can build

Add an alternative first-touch or follow-up message

Inspect or retire a configured arm without changing contact assignments

Parameters

Inputs accepted by manage_variants.

Name	Type	Required	Description
campaign_id	`string`	required	Campaign slug (e.g. 'gtm-engineers-apr26').
action	`"list" \| "add" \| "remove"`	required	'list' returns configured arms; 'add' appends an arm on a supported step; 'remove' retires the named arm.
step_index	`number`	required	0-based index of the sequence step to manage variants for. Required: matches REST path /campaigns/{campaign_id}/steps/{step_index}/variants.
label	`string`	optional	Required for action='add' or action='remove'. Names the arm.
message_template	`string`	optional	Required for action='add'. Message or media-caption template selected before personalization.
subject	`string`	optional	Optional for action='add'. Subject line for InMail steps.
target	`"sequence" \| "follow_up"`	optional	Which step array to target. 'sequence' (default) = pre-send. 'follow_up' = post-acceptance.

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Read the docs