| Connected Account | The connected account to use for the request | Connected Account | Yes | |
| Project ID | ID of the project to set the epic to | Text (Short) | No | |
| Epic ID | ID of the epic to update | Text (Short) | Yes | |
| Assigned to ID | ID of the user to whom the epic is assigned | Text (Short) | No | |
| Blocked note | Reason why the epic is blocked. Requires "Is Blocked" toggle to be enabled | Text (Long) | No | |
| Color | Color code in hexadecimal notation | Text (Short) | No | |
| Description | | Text (Long) | No | |
| Is blocked? | Whether the epic is blocked | True/False | No | |
| Subject | | Text (Short) | No | |
| Tag ID 1 | Provide tag ID | Text (Short) | No | |
| Tag ID 2 | Provide tag ID | Text (Short) | No | |
| Tag ID 3 | Provide tag ID | Text (Short) | No | |