# Frequently Asked Questions

This page addresses common issues you may encounter while using YCloud and WhatsApp Business API products.

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<summary>YCloud Payment Methods</summary>

We support online WeChat and credit card top-ups; for offline corporate bank transfers, please contact your business manager for the payment account.

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<summary>Embedded Sign-Up Related</summary>

If an error occurs in the embedded sign-up pop-up, we recommend consulting the [Embedded Sign-Up Error Documentation](https://developers.facebook.com/docs/whatsapp/embedded-signup/errors) to resolve the issue.

Embedded sign-up error responses come directly from Facebook's servers, over which we have no control, and we do not have access to any support logs for this process.

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<summary>Display Name Related</summary>

The display name should be related to the company or brand name you use for your WhatsApp Business API service. You can [click here for detailed naming rules](https://www.facebook.com/business/help/757569725593362). To modify it, you can [click here](https://business.facebook.com/wa/manage/phone-numbers/?business_id=726792559387575\&waba_id=224338174092612) to view and edit.

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<summary>Official Business Account (Green Badge Verification) Related</summary>

Please [click here](https://helpdocs.ycloud.com/help-center/whatsapp-basics/green-tick-verification) for the verification guide.

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<summary>WABA/Number Migration Related</summary>

Please [click here](https://helpdocs.ycloud.com/help-center/whatsapp-accounts-zhang-hao-guan-li/chuang-jian-whatsapp-api-zhang-hao/hao-ma-qian-yi) for details.

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<summary>WhatsApp Business Messaging Policy Related</summary>

You can [click here](https://business.whatsapp.com/policy) to view WhatsApp messaging policies.

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<summary>WhatsApp Template Message Review Related</summary>

Reviewed by Meta, the review process typically takes one business day.

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