MPE_CONFIG.VAR_DESC is varchar(300), but the description written for
DC_MAXCELLS_WEBEDIT is 336 characters, so the insert truncates it. The
truncation raises a WARNING, which sets SYSCC, and makedata aborts on
`&syscc ne 0` immediately after %mpe_makedata():
WARNING: Character expression will be truncated when assigned to
character column var_desc.
ERROR: Execution terminated by an ABORT CANCEL statement
The abort happens before the settings job is written, so a fresh deploy
ends with no control library and no settings.sas at all. It goes
unnoticed because the SAS test suite reuses whatever library is already
on the estate - the first time it bites is a deploy from scratch.
The description is shortened to 201 characters in both places it is
written - mpe_makedata (new installs) and the 20261003 row/cell limits
migration (existing installs). The rationale it carried is user-visible
help text, so it moves to a SAS comment above each insert rather than
being dropped.
Verified on a real Viya estate, deploying from scratch:
- before: makedata aborted, "Err during VIYA1337 build", no settings.sas
- after: makedata completed with zero warnings, and the SAS test suite
then ran 59/59 green
dc