GET /envelopes/{envelopeId} returns empty comments array in commentThreadTabs

Hi everyone,

I’m running into an issue where I cannot retrieve the actual comment data from an envelope using the primary Get Envelope endpoint, even when including all relevant parameters.

The Goal: I want to retrieve the contents of commentThreadTabs (specifically the comments array) in a single request to avoid making multiple calls per envelope.

The Problem: When calling GET /v2.1/accounts/{accountId}/envelopes/{envelopeId} with the following query parameters: ?include=workflow,documents,custom_fields,recipients,tabs,prefill_tabs

The response returns the commentThreadTabs object, but the comments array inside it is always empty.

Observations:

• If I use the specific GET /v2.1/accounts/{accountId}/envelopes/{envelopeId}/documents/{documentId}/tabs endpoint, the comments are populated correctly.

• However, the documentation for the main Get Envelope endpoint implies that include=tabs should return the full tab schema, which includes the comment threads.

Questions:

1. Is it by design that the comments array within commentThreadTabs is excluded from the main Envelope response?

2. Is there a specific include value or header required to "hydrate" these comment arrays in a single call?

Any insights would be greatly appreciated!