Subscriber ID ERROR

[Hadi_Alkhidr]

What is your goal?

Fix the 400 error

What is the problem & what have you tried?

Hello,

We’re currently facing an issue with our ManyChat automation in Make (Integromat).

Everything was working perfectly before — the scenario was running, messages were being sent, and the “Send a Flow” module was working without any problems.

However, suddenly it stopped working and we’re now getting this error:

“BundleValidationError: Value doesn’t match pattern in parameter ‘subscriberId’”

We are correctly mapping the Subscriber ID from the ManyChat “Watch Incoming Data” module (we are using the numeric ID field), and nothing in the scenario setup has been changed from our side.

We also tried:
• Mapping the Subscriber ID in different ways
• Sending the ID as a string
• Using a hardcoded Subscriber ID (numeric only)

But the issue still persists.

This same setup is working in another account with the exact same configuration, which makes us think this might be related to the connection or API validation on this specific account.

Could you please check:
• If there is any issue with the ManyChat connection
• If the Subscriber ID format requirements have changed
• Or if there is any limitation or bug affecting the “Send a Flow” module

We would really appreciate your help as this automation is critical for our workflow.

Thank you.

Error messages or input/output bundles

Error 400

Screenshots (scenario flow, module settings, errors)

[mszymkowiak]

Hello,

Welcome to the community @Hadi_Alkhidr.

If the second scenario is working and this one was working before, the chances that something suddenly broke are really small. I would also guess that this is an issue related to SubscriberID.

You can create a new scenario and use the Get Subscriber's Info module to validate this ID (hardcode it), or use an HTTP call to the /fb/subscriber/getInfo endpoint.

Manychat API

Have a nice day,
Michal

[Hadi_Alkhidr]

If I implement that, will the current 156 records be removed from the ongoing AI conversation in Instagram DMs?

[Hadi_Alkhidr]

Hello, just tried it. Unfortunately did not work.

[mszymkowiak]

So, if get info doesn’t work, you can be confident that this is why your scenario isn’t working.