som_version.unsupported_major

Refused 400 policy

som_version is 2.0 or later.

Outcome	Refused, 400
Source	policy: This bus's operational rules (identity, grants, size, idempotency, story ownership). Not a verdict of the SOM standard.
Checked at	SOM envelope, version and payload (see the order of checks)

What it means

This bus carries the SOM 1.x compatibility line. A different major version is a different contract.

How to fix it

Send a 1.x som_version.

Related rules

• som_version.pre_1_0

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Branch on the rule id, never on the violation's message text. All rules: rule catalogue.