RCS Registration & Launch Guide

Shahzad_Ismail — Tue, 11 Aug 2026 20:15:15 GMT

Onboarding for RCS is separated into two phases: RCS Agent Registration and RCS Agent Launch. Below are the country and carrier specific rules for these phases.

Review these before registering an RCS Agent to ensure the agent is set up correctly and will be approved for launch.

RCS Agent Registration

Sinch tools and platforms can be used to register (create) RCS agents. A guide to creating an RCS agent in the Sinch Build Dashboard is available here.

Provisioning API is available as a programmatic solution.

After an agent is created, test messages can be sent to RCS for Business enabled devices.

Agents can be registered and tested on enabled devices in any country, even where RCS for Business is not currently available for launch. Country coverage can be viewed here. Supported countries/carriers are updated regularly, check with your Account Manager for the latest.

Available markets relate to where an RCS message is terminated, not where a company is based/originating the message.

Note: Some carriers include messages on non-verified agents during testing, highlighting that the agent is not verified.

RCS Agent Launch

RCS agents must be submitted for verification and approval before live traffic can be sent. The processes and requirements for verification and launch are determined by Google and the mobile carriers.

Launch status can be found using the Provisioning API or the Build Dashboard. Updates may also be communicated by your Account Manager.

Carrier requirements and steps for launch

Note: RCS requirements and rules change periodically. Sinch continues to evolve our process to meet these changes. For up-to-date detail confirmation and answers to any questions, reach out to your Account Manager.

Carriers have varying requirements for verification and launch; most of this information is collected as part of the set up and launch process, but some steps need to be completed separately.

Timelines for launch vary by region and carrier. The best way to ensure a quick and smooth launch is to ensure all guidelines are followed, and all required information is provided in a timely manner.

Carrier/Country Specific Rules

Brazil	Generic senders are not allowed – all agents must be for the brand sending the messages No multi-use agents allowed.
France	For Upscale the message must contain a weblink for opt-out If a paid phone number is included the rate should be indicated in the phone label (i.e. .025 €/min)
Germany	Generic senders are not allowed – all agents must be for the brand sending the messages T&C should be in German or include the option for a translated version If a contact number is provided, it must be a +49 number An agent name can only be used once, even by different partners (i.e. there can only be one agent called Sinch, other agents need to be called Sinch OTP, Sinch Promotions). Gambling services are permitted only for brands with an official Germany gambling license. A copy of the official license must be provided.
India	No multi-use agents allowed. Additional sending rules or limitations may apply, check with your Account Manager to confirm details.
UK	If a contact number is provided, it must be +44 number Demo agents must have “demo” in the agent’s name The region for RCS agents must be set to EU during agent registration.
US	Generic senders are not allowed – all agents must be for the brand sending the messages The agent's description must include information about what the agent does and the service it provides (i.e. no taglines). The keywords STOP, HELP and START and their corresponding replies must be supported and compliant. The carriers will test these as part of the verification and launch process. The region for RCS agents must be set to US during agent registration. Wireframes are required for agents requesting Conversational billing. The digital assets (logos, banners) submitted for brand verification must exactly match the agent details. Brand vetting tokens expire after 12 months and must be renewed to avoid suspension. In addition to the content prohibited by Google’s Acceptable Use policies, the following content is also prohibited: T-Mobile. Age-gated content (as defined in the T-Mobile Code of Conduct) Donation/Pledge Solicitation Loan Arrangement Social Media Sweepstakes/Contest. AT&T Payday loans, cash advance services No loan ads other than messages from direct lenders for secured loans No credit repair debt relief No work from home/secret shopper ads No lead gen campaigns that indicate sharing information with 3^rd parties No charitable donation campaigns (text to donate). Verizon Collections from 3^rd parties (collection agencies) Short term loan campaigns (except from direct lender) Generic job alerts (except for a company hiring for themselves) Affiliate marketing. AT&T requires wireframes for agents requesting Conversational billing.

Carrier/Country Specific Steps

Google, Sinch, the mobile carrier, or a third party verification company might reach out to request additional information. Send documentation to your Account Manager unless otherwise specified.

The Sinch name is often included in the communication with brands for agent verification. The name can be excluded or changed on some carriers but not on all. The steps to exclude the Sinch name are listed below where it’s possible.

Country	Carrier/Country Specific Registration Steps	White-Label Launch Supported?	White-Label Special Process & Documentation
Global	Google Managed Carriers: The brand must reply to a verification email from Google. A corporate email address matching the brand domain is required. Emails will come from rbm-support@google.com.	US only	In the US: Notify your Sinch AM before submitting for launch to ensure Google does not mention Sinch's name in the approval email sent to the brand. Outside the US: Google will include Sinch's name in the approval email.
Austria	Submit the completed Brand Approval Letter to the carriers and your AM.	Yes	Complete the Approval letter twice. Once with the brand authorizing the partner and once for the partner authorizing Sinch.
Belgium	Provide the completed Telenet Registration letter to your AM.	Yes	No special process required
Brazil	Brand must provide explicit approval and tax details (Tax ID). The brand must reply to an authorization email sent by ABR Telecom to complete the verification for all carriers	Yes	No special process required
Canada	Complete and submit the CTA Agent Application form to your AM.	Yes	Include the ASP and DCA details on the application form. Notify your AM that Sinch’s name should be removed from the LOA.
Czech Republic	Submit the completed T-Mobile RBM consent form to your AM.	Yes	A second copy of the Consent Form needs to be provided. Once with the brand authorizing the partner and once for the partner authorizing Sinch.
Denmark		Yes	No special process required
Finland	Submit the completed Brand Approval Form to your AM.	No
France	SIREN (Company ID number) is required. Carriers may reach out directly to the brand via phone/email to verify that the agent contact details are active and legitimate.	No	Both of the following documents must be fully executed and submitted: Free Mobile Authorization letter(between Sinch and the reseller) Authorization letter (between the brand and the reseller) Lycamobile and NRJ Mobile do not support removing the Sinch name at this time.
Germany	Submit the Brand Approval Form to your Sinch Account Manager. It must be hand-signed in blue ink and stamped (or signed via verified DocuSign). Modified templates will not be accepted	Yes	Two letters must be submitted your Sinch Account Manager. One signed by the brand, to authorize the Reseller and one signed by the Reseller, to authorize Sinch.
Greece		Yes	No special process required
Hungary		Yes	No special process required
India	Complete the Bot Verification sheet and send to your Sinch Account Manager
Italy	For Vodafone, submit the completed Brand Verification letter to your Sinch Account Manager	No	Vodafone: No special process required All other carriers: The Sinch name cannot be excluded
Mexico		Yes	No special process required
Netherlands	For Vodafone, KPN and Odido, complete and submit the Brand Verification letter  Note: The Google RCS Agent ID is required for this letter, formatted as XXX-NNN-ZZZ and can be retrieved from Sinch Build or your AM.	No
Norway		Yes	No special process required
Peru		Yes	No special process required
Poland		Yes	No special process required
Singapore	Must submit the company's official ACRA (registration certificate) along with a completed Letter of Authorization (LOA) to your Sinch Account Manager	No	Not supported by local carriers.
Slovakia		Yes	No special process required
Spain	The Brand must respond to the approval email sent by Google for the Digi network	Yes	The verification email Google sends to the brand references Telefonica instead of Sinch.
UK	The brand must copy, fill out, and send the UK Carrier Approval Email Template (see below and in Sinch Build) to the designated operator email addresses in the template. To: ray.lynn@vodafonethree.com; Wholesaleorders@vodafone.com Subject: [AGENT NAME] RBM brand approval Hi, Approval for Agent: [GOOGLE AGENT ID] I at [BRAND/COMPANY NAME] confirm that I am authorised to use the following name: [AGENT NAME], logo and images, as shown in the attached image file (s) for the RBM agent. I hereby confirm that I give permission to Sinch to register this RBM agent and use the logo for the purpose of sending RBM messages to the users of [OPERATOR NAME] networks (s) on our behalf. Regards [FULL NAME] [JOB TITLE] [COMPANY] BT and Telefonica have appointed third party verification partners, who will each send an email to the brand for approval on those two networks. The brand must reply to these emails. Google will email the brand to complete verification for Sky and Lyca Mobile.	No	Two separate authorization emails must be sent to the carriers: One from the brand authorizing the reseller, and one from the reseller authorizing Sinch. Contact your Sinch Account Manager before submitting for launch to request the Sinch name be excluded for BT and Telefonica. The Sinch name cannot be excluded for the launch of Sky and Lyca Mobile
US	Brand Vetting: Submit the completed Brand Verification Form to your account manager Brand vetting must be completed prior to carrier submission. Carrier Approval: Submit the Verizon Launch form and the US Requirements Form to your Sinch Account Manager.	Yes	For Google Fi and CSpire: Notify your Sinch AM before submitting for launch to ensure Google does not mention Sinch's name in the approval email sent to the brand. For all other carriers ensure the correct partner name is used in the required forms.

Reminder: If Google learns that an agent is in violation of Google’s Acceptable Use Policy or an agent experiences high spam reports, they may notify the carriers and Sinch and un-launch the agent.

article RCS Registration & Launch Guide in RCS