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SlimPay Help Center

Customization options




A range of Checkout customization options are available to you:

If you wish to opt for any of the customization options below, contact our support team.

Visual Checkout

We can provide you with a white label mandate signature solution*. Customization options include: 

  • Header logo
  • URL (domain name)
  • Footer logo


* This is a pay-to-use option. If you are interested, contact our support team for more information at

NB: In embedded mode, the Checkout banner featuring the logo is not displayed. This banner is only displayed in redirect and iFrame mode.

SEPA mandate template

The PDF template for the mandate to sign can be fully customized. 

SlimPay offers a customization kit which indicates the customization options available and how to download the new customized mandate template. 

During the SlimPay Checkout API call (#create-orders), the merchant must send the appropriate document template. 



Confirmation email

The contents of the confirmation email containing the signed direct debit mandate can be fully customized. Each merchant is free to adapt the text and use the customization options of their choice. It is also possible to incorporate HTML and CSS style sheets in accordance with a graphic charter. 

Similarly, it is possible to customize the email sender. 

The default confirmation email is as follows:


Confirmation text message

You can customize the contents of the text message containing the OTP code required to validate the signature. To do so, simply send us the desired template with a maximum of 140 characters. 


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