# Error 790: Parameter Not Allowed on This Plan PayMe's message with `language: "en"`: **A parameter is missing or cannot be set on this plan** The seller's plan requires a field you left out, or refuses a field you sent. `status_additional_info` names it. ## Usual causes - `seller_id` on `create-seller`, on plans that refuse it. ## What to do - Add or remove the named field. For `seller_id`, correlate on `seller_payme_id` instead. See [Seller Onboarding](/agents/steps/seller-onboarding). - If you think the plan is wrong, ask your account manager. The full list of codes is on [Errors](/payments/getting-started/errors). If something else is going on, see [Troubleshooting by Symptom](/agents/errors/troubleshooting).