Loymax, 2026

Wiki source code of 4.2. SMS mass messaging


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1 The **SMS mass messaging **module allows to send SMS notifications to a group of customers.
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3 (% class="box infomessage" %)
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5 If your SMS provider supports the Viber option, it is possible to send Viber messages or** Viber -> SMS cascade**.
6 More information about using cascades can be found [[below>>doc:||anchor="01"]].
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10 (% class="info" %)|(% style="width:736px" %)**SMS mailing page without Viber option**|(% style="width:719px" %)**SMS mailing page with activated Viber option**
11 |(% style="text-align:center; width:736px" %)[[image:SMS_without_Viber.png]]|(% style="text-align:center; width:719px" %)[[image:SMS_Viber.png]]
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15 No more than one link can be used in a Viber message. The link should be specified as a value for the** Link address** parameter. The link text should be specified in the **Button text** parameter. In this case, the link in the message will be displayed as a button with the specified text.
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18 ==== SMS mailing parameters ====
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20 Filling out the SMS mailing parameters consists of the following steps:
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22 1. [[Setting up A/B testing>>doc:Main.Smart_Communications.SMC_Use.Mass_messaging.A_B_testing.WebHome]] in the mailing, if required.
23 1. Filling out the **message parameters**. In case of A/B testing, it is necessary to fill out several variants of the message.
24 1. Filling out the **mailing settings**.
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26 ===== Message parameters =====
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28 * Specify the **Sender name**;
29 * Fill in the **message text**. You can use the [[Template Engine constructs>>doc:Main.Usage.Smart_Communications.Mass_messaging.Template_engine.WebHome]] in the SMS text.
30 * There is an option to upload the **image** (if needed). Smart Communications does not have any restrictions on the image size, except for the Nginx file upload limit — 32 MB. However, Google FCM does have file size limitations. If the payload exceeds the allowed size, Firebase may respond with the **‘Message Too Big’ error **for the entire request. To avoid such issues, we recommend following the guidelines below for image size in SMS mailings**:**
31 ** **Image format: **PNG or JPG.
32 ** **Recommended image size:** up to 300 KB.
33 ** **Image aspect ratio:** 2:1.
34 ** **Maximum image size:** 800 pixels.
35 ** **Maximum image width:** 1,000 pixels.
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37 After filling out the message parameters, you can send a test message. To do this, click **Test**. In the opened window specify the phone number and click **Send**.
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39 |(% style="border-color:white; text-align:center; width:736px" %)[[image:Test_message.png]]
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43 **Please note**: when you specify your phone number for a test message, the Platform generates a message for a special **test customer**. This is done due to the fact that in general case the Platform’s user may not have a customer profile in the database.
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46 ===== Mailing settings =====
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48 |(% style="border-color:#ffffff; text-align:center" %)[[image:Settings.png]]
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50 All types of settings have the same set of settings. Detailed description of mailing settings can be found in a separate [[article>>doc:Main.Smart_Communications.SMC_Use.Mass_messaging.Mailing_settings.WebHome]].
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52 ==== {{id name="01"/}}Cascades ====
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56 **Cascades **or **cascade mailing** (chain of notifications) is the sequential sending of the same message through different communication channels.
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59 If the SMS provider supports the Viber option, the cascade logic will be as follows:
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61 1. If only SMS text is provided — only the SMS will be sent.
62 1. If only Viber text is provided — only the Viber message will be sent.
63 1. If both SMS and Viber texts are provided, the System first attempts to deliver the Viber message. If delivery fails within 3 hours, the message is sent via SMS.
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65 The below 3 categories of recipients do not receive Viber messages:
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67 * customers who do not have Viber app installed;
68 * customers whose Viber was disabled on the day of the mailing;
69 * customers who at some point checked the box "Unsubscribe me from mailings of this brand" (a built-in Viber feature for branded mailings).
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71 (% class="box infomessage" %)
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73 **Note**: if you do not need to use the Viber option, it is recommended to fill in only the **SMS text message**. To disable the Viber messaging feature, please contact the technical support: **support@loymax.io**.
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