Vendor lock-in rarely announces itself at signing. It builds quietly over months of onboarding, customization, and integration — and by the time it's visible, switching costs have already grown large enough to make staying feel like the only option.
Proprietary platforms vs. open documentation
The clearest early signal is whether a provider builds on open, documented standards or on proprietary tooling only they fully understand. Ask directly: if this relationship ended tomorrow, could another provider pick up the infrastructure from documentation alone, or would it require rebuilding institutional knowledge from scratch?
IP and credential ownership at contract end
Lock-in often hides in ambiguity over who actually owns access. Confirm in writing that administrative credentials, source code, configuration files, and documentation transfer to you — not just access during the contract, but full ownership and exportability at the end of it.
Exit-cost scenarios worth asking about up front
- What would a transition to a new provider actually require — full rebuild, or handoff of existing documentation?
- Is there a defined offboarding process, or does the contract simply end with no transition support specified?
- Are there early-termination penalties beyond a reasonable notice period?
- Does the provider use any tooling, licensing, or platform that only they have access to administer?