Short answerThe main risks are losing instructions or files, Actions not transferring, behavior changing, users not finding the new version, costs surprising you and data privacy. Each has a simple mitigation.
| Risk | Likelihood | Mitigation |
|---|---|---|
| Instructions or files lost | Medium | Back up first: instructions, files |
| Actions do not transfer (OpenAI says they do not) | High if you use them | Inventory and rebuild early: Actions |
| Behavior differs | High | Side-by-side tests |
| Users cannot access the new version | Medium | Sharing steps and an announcement |
| Costs higher than expected | Medium | Estimate and set provider budgets |
| Sensitive data exposed | Low to medium | Privacy checklist |
| Deadline missed | Medium | Countdown plan |
| Migration button unavailable | Low to medium | Requirements and a rebuild fallback |
Likelihoods are our judgment, not statistics. Add your own risks and owners, and review them weekly with the tracker.
Not sure it is simple enough to do yourself?
Tell us what your GPT does, whether it uses Actions and how many files it has. We will say what will break and what a rebuild involves. The audit is free.
Request a free auditRelated guides
Sources
Pages describing other companies' products reflect their public documentation on the date shown and can go out of date.