A call conversion.

[Proto definition ![GitHub](https://developers.google.com/site-assets/logo-github.svg)](https://github.com/googleapis/googleapis/blob/master/google/ads/googleads/v26/services/conversion_upload_service.proto)

| Fields ||
|---|---|
| ## `call_start_date_time` | `string` The date time at which the call occurred. The timezone must be specified. The format is "yyyy-mm-dd hh:mm:ss+\|-hh:mm", for example, "2019-01-01 12:32:45-08:00". |
| ## `caller_id` | `string` The caller id from which this call was placed. Caller id is expected to be in E.164 format with preceding '+' sign, for example, "+16502531234". |
| ## `consent` | `https://developers.google.com/google-ads/api/reference/rpc/v26/Consent` The consent setting for the event. |
| ## `conversion_action` | `string` Resource name of the conversion action associated with this conversion. Note: Although this resource name consists of a customer id and a conversion action id, validation will ignore the customer id and use the conversion action id as the sole identifier of the conversion action. |
| ## `conversion_date_time` | `string` The date time at which the conversion occurred. Must be after the call time. The timezone must be specified. The format is "yyyy-mm-dd hh:mm:ss+\|-hh:mm", for example, "2019-01-01 12:32:45-08:00". |
| ## `conversion_value` | `double` The value of the conversion for the advertiser. |
| ## `currency_code` | `string` Currency associated with the conversion value. This is the ISO 4217 3-character currency code. For example: USD, EUR. |
| ## `custom_variables[]` | `https://developers.google.com/google-ads/api/reference/rpc/v26/CustomVariable` The custom variables associated with this conversion. |