Troubleshooting for WhatsApp (Third-Party)
When your WhatsApp does not connect properly to SleekFlow, please check the below FAQ to self-service and establish a new connection.

Q: What should I do if messages cannot be sent or received on SleekFlow, or if I experienced a slight delay?

Check your Channel Status

Please go to Channels and check your connection status.


You currently have a stable connection to WhatsApp.


This status happens right after you scan QR code or pressed "Troubleshoot" on SleekFlow. During this time, send and receive messages shall not work properly. Please patiently wait up to 60 minutes for WhatsApp to establish a connection. Contact Support if this persists.


You have lost connection to SleekFlow.

1. Phone should always be connected to the internet

Please keep your phone charged and connected to the Internet with Wi-Fi, with WhatsApp App running in the background of the device.
If the device is disconnected, you would not be able to send, receive and sync messages. Hence, we recommend keeping that phone in the office for stability reasons.

2. DO NOT use WhatsApp Desktop/ Web simultaneously

Please do not use WhatsApp Web/ Desktop while using SleekFlow.
We use the same WhatsApp Web interface to pass messages. Since you can only have one WhatsApp Web open at a time, using WhatsApp Web/ Desktop after connecting to SleekFlow will break the connection between your phone and SleekFlow.
Please log out of all other WhatsApp Web/Desktop Sessions, leaving only that of SleekFlow.

3. Troubleshoot - Establish a new ChatAPI's connection

If you have done 1 & 2 and still experience connectivity problems, we suggest "Troubleshoot".
Once you click the "Troubleshoot" button, it will take you to check for three steps.
Step 1: Re-check your internet connection.
Step 2: Make sure not to use WhatsApp Desktop.
Step 3: Confirm reconnect and establish a new connection
Wait for 5-10 minutes until a new connection establishes. During this time, SleekFlow will not work, and send or receive messages could be delayed.


1.Turn off Battery Optimisation for Android Phone

If you have an older Android phone, the battery optimisation feature could cause constant connectivity problems with WhatsApp. The phone will automatically cut Wi-Fi connection or kill certain app (e.g. WhatsApp) when the device is locked.
Please read more about this article from WhatsApp:
Turn off battery optimisation for WhatsApp or WhatsApp Business App:
Go to Settings:
    Navigate to Battery
    Navigate to Battery Optimisation
    Find WhatsApp or WhatsApp Business App in the list
    Select Don't Optimise

2. Replacing your phone with an iPhone

If the problem persists, we advise you to replace your phone with an iPhone. Certain Android phones have factory preset battery management control that prevents WhatsApp running in the background.

3. Migrate to WhatsApp Official Business API

Alternatively, the WhatsApp Official Business API should be more suitable for you. Contact support to learn more, or fill in the form here to apply.

Frequently Asked Questions

Q1: The WhatsApp connection works most of the time, but some messages could be missing.

As the connection hugely depends on your phone's connection to the internet, it is possible that sometimes the Wi-Fi may not be as stable hence resulting in missing messages.
You can "Sync History" to retrieve your lost messages. This process is quick if you have previously synced past conversations.
A success banner will show at the bottom to confirm. You should see that the status has been updated:
If you see the status shows as "Sync Failed". Please re-press the "Sync History" button again.
Please make sure your phone is well connected to the internet, and your current status is shown as "Connected" before syncing history.

Q2: Can I remove the WhatsApp channel anytime and add it later?

Sure! You can remove your existing WhatsApp Channel. The contacts and conversation history will be saved on your SleekFlow platform and will not be deleted. Feel free to scan the QR code to connect anytime.
Last modified 12d ago