When markup describes a different product from the page, another broad rewrite or another batch of output may leave the underlying problem intact. Diagnose the relevant failure before changing the whole process.
Find the likely cause
A reused template retains another item's values.
Treat this as an explanation to verify against the actual work. Look at the input, the relevant decision, and the final result together. If the evidence does not support this diagnosis, investigate the mismatch before applying a convenient but unrelated fix.
Make the targeted correction
Populate fields from the correct authoritative product record.
Structured data should describe the page's actual visible content accurately and be checked against the requirements of the intended feature.
Check that the repair worked
Inspect the rendered markup on representative product pages.
Repeat the check on the final version that the reader or customer will encounter. An approved draft, a preview, and a published result can differ; the acceptance decision should concern the version people actually use.
Prevent the next related failure
A separate issue to watch for is this: valid syntax is mistaken for guaranteed rich results. Check applicable feature requirements and interpret validation within its limits.
Monitor the useful outcome
Track validation errors, consistency with visible content, and eligibility without assuming a guaranteed search presentation.
Keep a short record of the original symptom, the evidence behind the diagnosis, and the result of the acceptance check. That record makes the solution reusable when the same condition appears again, without assuming that every superficially similar problem has the same cause.
Official reference for the platform or standard discussed: Google Search Central: structured data.