# cpg-500.org — CPG-500 · SYSTEM_ERROR CPG-500 · SYSTEM_ERROR — Retry or escalate. cpg-500 resolves to acm-500 — same number, same meaning; CPG application profile of ACM-68000 (cpg-68000.ai). The seven (CPG-68000, the CPG application profile of ACM-68000): CPG-000=NOT_APPLICABLE→ACM-000 · CPG-200=ALLOW→ACM-200 · CPG-300=CONDITIONAL→ACM-300 · CPG-403=RESTRICT→ACM-403 · CPG-404=NOT_FOUND→ACM-404 · CPG-451=ESCALATE→ACM-451 · CPG-500=SYSTEM_ERROR→ACM-500 Parent GTIN: 990832300716 · this signal's GTIN: 990832300723 Profile: https://cpg-68000.ai · Canon: https://acm-68000.ai · MCP https://mcp.cpgagentprotocols.ai/mcp (list_signals, resolve_signal) Surfaces of this signal: human https://cpg-500.ai · canonical https://cpg-500.org · commercial https://cpg-500.com · agentic https://cpg-500.io Doors: agents https://x-gsi.ai/ingest → https://mcp.cpghumanintheloop.ai/mcp · humans https://gsc-navigator.ai/ Operated by GreenCore Solutions Corp. | D-U-N-S 24-336-6774 | Microsoft AI Cloud Partner Hosting: Microsoft Azure · agents resident in 18 countries worldwide