# Message group

Each message published by Rightsline will have a `messageGroupId` that will be populated with the Char Type identifier of the entity the message is referencing.

| Message Group ID | Char Type    | API Endpoint        | Module/Component |
| ---------------- | ------------ | ------------------- | ---------------- |
| 0                | Relationship | /relationship       | N/A              |
| 1                | Catalog Item | /catalog-item       | Module           |
| 2                | Contact      | /contact            | Module           |
| 3                | Right        | /right              | Component        |
| 4                | Deal         | /deal               | Module           |
| 5                | Table        | /table              | Component        |
| 7                | Accounting   | /financial-document | Module           |
| 10               | Amount       | /amount             | Component        |
| 14               | File         | /file               | Component        |
| 15               | Job          | /job                | Module           |
| 16               | Project      | /project            | Module           |
| 17               | Inventory    | /inventory          | Module           |