Cannot Save Custom Connector When Using $ for Dynamic Inputs

I am trying to configure a custom connector for the Company Enrich API. I want to use a column from my table as a dynamic input for the semanticQuery field.

When I use the standard placeholder syntax {{ICP}} in the custom template, the connector saves successfully, but the dynamic input is not detected, so the request does not return any output.

When I try to use $ICP for the dynamic input (to reference the column as a parameter), Databar does not allow me to save the configuration.

I have already filled in:

• Headers (including accept and Authorization)

• Endpoint URL

• Integration name

• Integration type set to POST

Even with the parameter ICP defined and all required fields filled, placing $ICP in the custom template causes the save to fail.

It seems the system does not currently support $ placeholders in the JSON custom template for body parameters, even though this is suggested in the documentation.

Could you clarify the correct way to reference table columns as dynamic inputs in a custom template when using JSON, so that the request returns output correctly?

Thank you