# 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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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://helpdocs.ycloud.com/help-center/support/frequently-asked-questions.md?ask=<question>
```

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The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.