October 29, 2025

How to Check Bot Error Logs and Custom Variables in SendWo

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No matter how advanced your automation is, even the best WhatsApp bots need monitoring and debugging to run smoothly. And here comes SendWo’s Bot Error Logs and Custom Variables.

These tools not only help you identify issues instantly but also fix broken flows and create personalized user experiences without coding headaches. This tutorial will make you understand how to use both features efficiently in SendWo.

Use Cases

Here are some live examples where Bot Error Logs and Custom Variables make life easier for WhatsApp automation builders:

  1. Detect why a bot message failed to send.
  2. Debug API and JSON syntax issues in seconds.
  3. Monitor failed user interactions in real time.
  4. Personalize conversations using dynamic variables.
  5. Store and manage user-specific data inside bot replies.

These features together ensure your automation stays accurate, responsive, and contextual.

Step 1: Open the Bot Error Logs Panel

  1. Log in to the SendWo Dashboard.
  2. In the sidebar, navigate to Bot Manager and select your connected WhatsApp Number, which could be, for example, your Brand Support.
  3. Click on Bot Reply to open your bot flow list.
  4. In the top-right corner, select Options and click Bot Error Logs. You’ll be able to see an orange badge showing the total error count.
Bot Error Logs Panel

This section gives you a transparent view of every flow issue detected in real time.

Step 2: View and Understand the Error Log

Now, you could easily see the Error Log Panel. Here you’ll be able to identify structured columns that make debugging effortless:

ColumnDescription
#Error index number
Error MessageDescribes the error cause (e.g., JSON Decode Error)
Error TimeIdentify when the error occurred
Actions✏️ icon lets the user jump straight to the faulty flow
View and Understand the Error Log

Common Error Types

  • JSON Decode Error: Caused when the bot receives an invalid or malformed JSON body — often during API calls.
  • System Error (403 / 404): Usually triggered by broken URLs, missing permissions, or expired API tokens.
  • Invalid Variable Reference: Occurs when a flow tries to use a variable that doesn’t exist or hasn’t been set.

Step 3: Clear or Close the Log

  • Click Clear Log located on the top-right to delete all the current error entries.
  • Click Close, which will be on the bottom-right, to exit the log view without clearing.

Tips: It’s best practice to review and fix all listed issues before clearing the logs, ensuring no important detail is lost.

Step 4: View and Manage Custom Variables

Custom Variables enable the user to create personalized WhatsApp experiences in SendWo.

To view or edit them, go through the steps below:

  1. Go back to the Options dropdown.
  2. Click on Custom Variables.
  3. You’ll now see all user-specific data fields your bot has stored.

These variables look like:

{{first_name}}

{{email}}

{{order_id}}

{{membership_status}}

{{tracking_number}}

Use them to personalize your messages output dynamically.

Custom variables in SendWo are automatically updated through user inputs, API responses, or “Set Variable” actions within flows.

Summary Table

FeatureLocationPurpose
Bot Error LogsOptions > Bot Error LogsDebug flow execution and other system issues
Edit Flow from Log✏️ Icon beside each log panelJump directly to fix the faulty
Clear LogsTop-right in error log modalRemove old or resolved logs
Custom VariablesOptions > Custom VariablesManage dynamic user data
Set Variable ActionInside Flow BuilderDuring chats, update user data

Why These Tools Matter

  • According to WhatsApp marketing benchmarks, bots with real-time monitoring reduce flow failure rates by up to 48%.
  • Similarly, personalized messages (powered by custom variables) see conversion lifts of 30–40%, especially in e-commerce and service-based businesses.

That means SendWo isn’t just helping you debug faster. In fact, it’s helping you build smarter, high-performing automations that drive results.

Final Words

SendWo gives you two powerful features to ensure your WhatsApp automation is error-free, intelligent, and highly personalized.

Track every failed flow, debug API issues effortlessly, and build experiences that feel human - all from a single dashboard.

1. What does a JSON Decode Error mean?

It means the bot received a response that’s not valid JSON, usually due to improper formatting from an external API.

2. Will clearing logs delete my bot or customer data?

No. Clearing logs only removes the list of past error entries. Your flows, templates, and user data remain safe.

3. Are custom variables shared across users?

No. Each user has their own individual variable set, making personalization safe and precise.

4. How to update variable values automatically?

Variables can be updated via User Input Flows, Webhook Data, or the Set Variable action inside your Flow Builder in SendWo.

About The Author:

Snehil Prakash

Snehil Prakash is an expert WhatsApp consultant with SendWo. He has expertise in implementing WhatsApp API for enterprise businesses and built automation, chatbot and AI powered solution.
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