Our requirements for populating contract from CRM requires passing values form multiple record types (Deals and itemised Related Lists, Proposals etc).

The Contract extension for CRM is great, but these do seem to be beyond it's design or capability. Therefore looking in to how to do this using Deluge.

So far I can GET contract once created, but the custom fillable fields do not appear to be shown in response. However it is in contract document.

Have tried using metaApiName & inputApiName found by right-clicking on custom fillable field .. but getting "PATTERN_NOT_MATCHED" error.

Can someone provide any advice in how to insert custom fillable fields.

OR .. perhaps, taking a step back, How can we insert complex related data into a contract programatically after it has been created?