Why error Field is not editable for Amendment quote?

[Jyoti_Sinha]

The error (Field is not editable for Amendment quote) , is thrown when a Formula type field is sent as part of SendtoZBilling or Preview() call.

Please check below for the solution of this error.

[Jyoti_Sinha · Accepted solution]

In this specific scenario customer is using a formula type custom field on Quote Rate Plan charge Object.

The error should get resolved by removing the formula type field from Custom Charge Fields (zqu_CustomChargeFields) field set of Quote Rate Plan charge Object.

Also, only the following data types are supported for Zuora Quotes custom fields used for sending quotes to Z-Billing, as explained here

Text
Text Area
Text Area Long
Picklist

If you want to send the formula type custom field then create another text type custom field where you can feed the value using a trigger or workflow from the formula field or instead of using a formula field.