WhatsApp error 132000: parameter count mismatch
Error 132000 means the variables you supplied do not match what the template expects. A template with two placeholders needs exactly two values, in order. It commonly appears after someone edits a template and the sending code is not updated with it.
- Count and order both matter
- Editing a template can break existing sends
- Components are per section, not one flat list
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Meta's code for a variable count that does not match the template.
The placeholder format templates use, numbered and filled in order.
The different code returned when the template itself cannot be found.
How are template variables counted?
Per component, in order, using the numbered placeholders in the template text.
A template body reading Hello {{1}}, your order {{2}} has shipped defines two variables, and a send must supply exactly two values for the body component. Supplying one, or three, returns this error. So does supplying two but for the wrong component, because header, body and button parameters are counted separately rather than pooled into one list.
This is why the error often looks wrong at first glance: the total number of values can be correct while the distribution across components is not.
Why does it appear on a template that worked yesterday?
Because someone edited the template and the sending code did not change with it.
Templates can be edited after approval, and adding or removing a placeholder changes the contract silently from the sender's point of view. Nothing warns the integration, and the next send fails. On a team where marketing edits templates in WhatsApp Manager and engineering owns the sending code, this is the most common way the error appears.
The defence is to read the template back rather than trusting a value written down when it was first built. Listing templates returns the current definition, which is the only version that matters at send time.
How do you supply the values correctly?
By building the components array to match the template's own structure.
Each component names its type and carries its own parameters in the order the placeholders appear. A body with two variables takes a body component with two text parameters. A template that also has a variable in its header takes a header component as well, with its own parameter, rather than the header value being added to the body list.
Through the MCP connector this is one step removed from you: an assistant reads the template, sees how many placeholders each component has, and fills them from what you asked for. From your own code it is worth reading the template definition at startup rather than hardcoding a shape that can change.
Common mistakes
- Pooling header and body variables into one list. They are counted per component.
- Hardcoding a variable count. A template edit changes it without warning the sender.
- Sending an empty string for an unused placeholder. The template still defines it, so the count has to match.
EasyCoexistence reads back the current definition of any template on a number, with its components and placeholders, from the dashboard or through the MCP connector.
Frequently asked questions
Can I send a template with no variables?
Yes. If the template defines none, send no parameters. Supplying them anyway returns this error.
Does the order of values matter?
Yes. Placeholders are numbered and filled in order, so swapping two values produces a wrong message rather than an error.
Why does the same send work for one language and not another?
Each language version is a separate template and can have a different number of placeholders after an edit.
Is this the same as 132001?
No. 132001 means the template could not be found or is not approved. 132000 means it was found and the variables did not match.
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