n8n Workflow: Google Flow Omni 1.1 UGC Video Ads

Turn product ideas into consistent UGC-style video ads using n8n + Google Flow Omni 1.1

This n8n workflow creates and submits multi-clip Google Flow Omni 1.1 Flash UGC video ads with a consistent presenter face and voice. From an n8n multi-step form to presenter/voice previews, product reference images, and final selectable video takes, you can generate polished omni-style ads in an automated pipeline.

What this workflow does

1. Collects ad inputs via an n8n form: choose your Google Flow account email, presenter source (generate/upload/saved character), number of products, intro/closing clips, video format, and timing per clip.
2. Builds the asset set: captures detailed scene/action/duration inputs per clip and uploads any provided images to your Google Flow account using useapi.net.
3. Validates account health and credits: checks Google Flow status and available credits; if unhealthy, unpaid, or underfunded, the workflow stops and shows an explanation page.
4. Generates or selects presenter assets: creates presenter images (including an additional angle), generates voice preview candidates, supports re-rolls, and saves the selected face+voice as a reusable Google Flow character.
5. Creates product references and scenes: generates four-view product sheets (or uses uploaded product photos), then generates scene keyframes featuring the chosen character and product references—again with selectable picks or re-rolls.
6. Submits Omni 1.1 Flash video jobs per clip: runs one job for each clip (intro/product/closing) with multiple takes, polls job status, and lets you select or re-roll specific takes.

Use cases

• SaaS teams producing UGC-style ads for different SKUs while keeping one presenter identity consistent.
• Automation engineers building an n8n marketing content pipeline with credit-aware safeguards for Google Flow.
• Operators who want a repeatable character (face + voice) reused across campaigns.

Technical details

• Workflow nodes: if, code, form, wait, switch, webhook
• API integration: useapi.net Google Flow API for presenter/voice generation, asset uploads, and Omni 1.1 Flash job submission + polling
• Supports selecting/re-rolling: presenter assets, scene keyframes, and per-clip video takes