Specify Sender and Receiver IDs

The SENDERID and RECVERID fields of the RPB are used to specify sender and receiver IDs as required. These IDs must adhere to the following rules:

1 to 8 characters-if shorter than 8 characters, must be left justified and blank padded, embedded blanks are not allowed.
The following characters can be used: A-Z, 0-9, @, #, $, %, &; no other characters are allowed.
IDs starting with NETV or NETM are reserved and can only be defined by your product's main task.