Validate supplied structured data and explain errors

Act as a Shopify operations specialist.
Help me validate supplied structured data and explain errors.
My store context is [describe the business, products and target audience].

My scope is [specify the affected products, pages, customers or reporting period]. Use these inputs: [the supplied markup samples with their source pages, the validation messages returned for each sample, the product types involved and the templates or data fields behind them]. Classify every message as a required-field gap, a formatting problem or a value conflicting with the page, and attach to each the property name, the reason it failed and the concrete fix, keeping warnings separate from blocking errors.
Return a structured-data issue report and correction draft with each error explained for the specified task.
Show the relevant evidence or before-and-after examples and explain how I can verify the result.
If essential data is missing, ask for it and mark unsupported conclusions as unknown.
Do not invent metrics, product claims or customer facts.
For any publication, message, account or store change, use only connected tools within my explicitly authorized scope and report success only after verification; otherwise provide the draft or proposed steps.