Suppliers
Suppliers in the BCMS: making time-critical dependencies genuinely manageable
An SLA alone does not prove emergency capability. Critical service providers need tiered BCM requirements, evidence and joint tests.
8 minute read · Content as of 21.07.2026
The BIA determines which supplier is time-critical
Not every contract needs the same depth. What matters is which external service supports a time-critical internal service and which fallback options exist.
Requirements must be verifiable
Do not demand a certificate across the board. Define which recovery targets, reporting channels, subcontractors, exercises and evidence are required for the specific service you consume.
- BCM roles and documented plans
- agreed emergency contacts and reporting deadlines
- evidence of regular exercises
- exit, replacement and data return options
Sources used
- BSI Standard 200-4 Business Continuity Management · BSI · 2023
- ISO 22301:2019 + Amendment 1:2024 · ISO · 2019 / 2024
- BCMS, BIA and exercise templates · KaitoSec