## OPERATION: Empty Body with two header blocks, MU="1" and "wrong". (Test T23)

This operation sends a string value in a header block that is unknown to the receiver, and a string value in an "echoOk" header block. MustUnderstand is "1" for the unknown header block, and has the invalid value "wrong" for the echoOk header block.

### Enter the SOAP service endpoint URL you wish to use:

### Enter the string value for the "Unknown" header block:

### Enter the string value for the "echoOk" header block:

<

### Request message buffer:

### Response message buffer: