Page layout visibility depends not only on the existence of the deployed page-layout metadata but also on the layout assignments associated with profiles and, where applicable, record types. Salesforce documents that page layout assignments are profile metadata and that deployments can affect or remove assignments when the required profile, record type, and page layout metadata are not included together. After deployment, the app builder should therefore verify and update the page layout assignments so users receive the intended layout containing the new fields. Redeploying the same components without correcting the assignment does not address the configuration issue. Recreating the fields is unnecessary because deployment already created them. Field-level security controls whether users may access fields, but the question specifically identifies their absence from the assigned page layout.

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