# Merge
### **When to Use the Merge Component?**
Use the Merge component when you need to:
* Combine outputs from two or more previous steps
* Bring data back into one path after branches
* Append or merge lists into a single list for next steps
## **How to Configure the Merge Component?**
### **Step 1: Add and Name the Merge Component**
* Add the **Merge** component to your flow
* Give it a clear and descriptive name based on what you're merging\
\&#xNAN;*(e.g., “MergeOutputandTokens”)*
This helps in identifying the merged output in the next steps.
### **Example Use Case**
You previously had:
* A **Loop Over Webhooks** step → produced a list
* A **Slack – Generate Token** step → produced token headers
After adding the Merge step, both outputs will be taken as inputs
* Strategy selected: **Append**
* The outputs are merged into one unified list
This lets you work with one combined result rather than handling two separate values.
{% hint style="info" %}
When merging lists, ensure that **both lists follow the same format.** This ensures the merge works correctly, and you can map the merged data without issues
{% endhint %}
### **Step 2: Select the Input Lists to Merge**
You will see fields to add the inputs you want to merge:
* Enter the reference for each list you want to merge\
e.g.:
* `{{steps.loopOverWebhooks.output}}`
* `{{steps.generateToken.headers}}`
> Add or remove fields using the icons on the right, based on how many sources you are merging.
### **Step 3: Choose the Merge Strategy**
You must select how the lists should be merged. For example:
* **Append** → Appends the lists in order, combining them into one list
{% hint style="info" %}
*This means list items from the second input will be added after the first list.*
{% endhint %}
### **Step 4: Set the Number of Sources**
* Specify the number of sources you are merging
> Add or remove the source fields to match this count
### **Step 5: Add a Success Message to Display Output**
Once your merge is complete:
* Add a **Success Message** component at the end of the flow
* Output the merged value inside this step
* Run the flow to confirm it executes successfully
> This will allow you to view both merged values clearly in the final output of the flow.
