On Mon, 8 Dec 2025 23:24:59 -0600, Brian Westerman 
<[email protected]> wrote:

>>Are the rules the same for what is logged by WTO 
>>versus what WTO displays on the terminal for WTPMSG?
>
>I guess it would depend on if you have MPF automating the message or not.  
>If no automation is present, then they should be the same.

TSO processes WTO using SVC screening prior to any possible automation. Rules 
not enforced by the WTO macro are at the discretion of TSO. Most likely, TSO 
most likely does not restrict the length according to the doc.

The WTO SVC creates a WQE, WMJ or WMN that is sent to the SSI to be processed 
by automation. WQE has a max text length of 128 bytes and the text length is 
not part of those 128 bytes. WMJ (major) and WMN (minor) have a max text of 72 
bytes and the text length is not part of those 72 bytes. I've never tested WTO 
TEST= with 128 byte message so I don't know if 126 is enforced by the WTO SVC. 
Of the automation products I've worked on, they don't bother checking the 
length because it's the SVC's responsibility.

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