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Agentic Workflows: How to Add a Fallback for Variables

Make sure that you have all of the data you need to create videos in automation.

Bethany Stachenfeld avatar
Written by Bethany Stachenfeld
Updated yesterday

When you’re working with automations, it’s common to run into missing data. For example, if a contact doesn’t have a first name filled in, your video or email could look awkward. To prevent this, you can add a fallback value using the Table Replacement tool in Sendspark’s Agentic Workflows.

This guide will walk you through setting up a fallback step so your automations always have clean, usable data.

Step 1: Add the Table Replacement Tool

Inside your Agentic Workflow:

  1. Add a tool for Table Replacement.

  2. For the Field Input Data, select the field you want to check (e.g. "First Name").

  3. For the Second Field, select Empty List.

This setup lets the workflow detect when the selected field is empty.

Example:

Step 2: Configure the Logic

Next, tell the workflow what to do if the field is empty.

  1. Add a condition: If the value is non-empty, replace it with the original field data.

  2. Otherwise, specify a fallback word (for example, "there").

This ensures that if a contact’s first name is missing, the message still flows naturally:
​“Hi there” instead of “Hi watermelon.”

Example:

Step 3: Use the Replacement Field in Your Workflow

Finally, make sure you’re using the updated field everywhere you want the fallback to appear.

For example, in the Contact Name field of a dynamic video, select:
​Table replacement: Replacement value

This way, Sendspark will automatically use the contact’s real data if available, or your fallback value if not.

Example:

Best Practices for Fallbacks

  • Keep it natural: Use fallback values like “there,” “friend,” or “your team” that sound human in context.

  • Match the tone: If your brand is casual, “there” works. If it’s more formal, try “valued contact.”

  • Test before launching: Always run a test automation to make sure your fallback logic displays correctly.

  • Use sparingly: Fallbacks are a safety net, not a replacement for clean CRM data. Keep your contact lists as complete as possible.

Summary

By adding a fallback with the Table Replacement tool, you ensure your automations always look polished, even if some data fields are missing. This small step can make your personalized videos and outreach feel much more natural and professional.

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