Bill Transaction Currency to Invoice and Revenue Currency conversion attributes doesn't show values

Summary:

While creating Contracts using REST API, we are providing values for Bill Transaction Currency to Invoice and Revenue Currency conversion attributes on the Bill Plan as follows -

Conversion Rate Type - Corporate

Conversion Date Type - Transaction date

But it errors out saying that these values can't be filled in case the billing currency type is CONTRACT and it should be USER.

How can we make sure these are populated for INTERCOMPANY Contracts ?

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