# Brand Verification Letter (out-of-band requirement)
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**Important**  
In addition to the console registration, you must complete a brand verification step outside of AWS End User Messaging. Your registration cannot be approved until the Brand Verification Letter is received and validated.

After you submit your registration in the AWS End User Messaging console, you must send a signed Brand Verification Letter by email to the German RCS approval authority. This letter confirms that your organization authorizes the use of your brand for RCS messaging in Germany. The letter must be signed by the brand contact person (the same person listed in the registration form), the contact person must use a business email address (free email providers such as Gmail or Yahoo are not accepted), and the letter can be signed by hand (scanned copy) or with a verified digital signature.

The Brand Verification Letter is a bilingual (English/German) form with fields for the brand owner (company name), brand name (RCS agent brand name), contact name, contact email (business address), and RBM supplier (enter `Infobip`). After filling in the fields, sign the letter and email it, with your brand logo attached, to `brandapproval@rcsbusinessmessaging.de`, CC `aws-end-user-messaging-rcs-approvals@amazon.com`. The email subject should be `RCS Brand Approval - [Your Brand Name]`.

**Note**  
Your Agent ID (RCS for Business ID) can be found in the AWS End User Messaging console. Navigate to **SMS > RCS agents**, select your agent, then open the **Country launch status** tab. The Agent ID is listed as the RCS for Business ID in the Launch Status by Country section.