# 64004: Pay: Invalid paymentConnector attribute in TwiML.

Log Level: ERROR

## Description

A 64004 Error is an indication that the value provided with paymentConnector attribute of Pay verb does not match to a Pay Connector configuration. See the [Pay Verb](/docs/voice/twiml/pay#paymentconnector) API Reference.

### Possible solutions

* Make sure that the paymentConnector matches a Unique Name in the `<Pay>` Connector. Go to [this page](/console/voice/pay-connectors) for a list of your Connectors.