The Group header indicates the begginning of a batch CWR transactions on the file.
It contains the following fields:
| Field | Type | Required | Description |
|---|---|---|---|
| Record Type | Alphanumeric | Yes | It is always ‘GRH’ |
| Transaction Type | Table Lookup (Transaction Type table) | Yes | All the transactions in the group are of this type |
| Group ID | Numeric | Yes | Sequential ID starting on 1 |
| Version Number | Alphanumeric | Yes | CWR version of the transaction. By default it is ‘02.10’ for CWR 2.1 |
| Batch request | Numeric | No | ID used by the submitter to internally identify this batch |