Send custom fields on amendment quote to Zuora

[Zuora-Support]

custom fields at the charge-level should be sent to Zuora for amendment quotes, in order to update the custom fields on the charges within that subscription.

[MKent525]

we also need this - is it supported today?

[nathanc]

This is supported now in Quotes.

[feisley]

@nathanc can you note which version this was implemented in so that people that are not on the latest version know which one includes it.