Multicert - Digital Signature Certificate

Multicert is a digital signature service provider, integrated with InvoiceXpress, that allows you to digitally sign the documents issued by a user through an InvoiceXpress account. 🔏

📖 What it is

Obtaining a professional attributes certificate is an essential step to activating and using the Qualified Digital Signature through InvoiceXpress. This is one of 2 digital signature service providers that can be used through InvoiceXpress; the other is the Electronic Invoice Signature Service (SAFE) of AMA (Agency for Administrative Modernisation).

Through our integration with Multicert, our customers can subscribe to the digital signature service.

🛒 How to subscribe

Subscription to the service is made through the Sign'Stash website (in Portuguese). On this page, you can subscribe to a plan by filling in the signature form with the company details requested. After the information provided is validated, you will receive by email all the information needed to continue the process.

Once the Sign'Stash subscription is complete, you will need to access the service back office with your operator account, in order to finalise the supply. You should then purchase a certificate within the Sign'Stash platform, following the instructions provided for this purpose. After the purchase, the certificate is issued by Multicert.

To set up a digital signature certificate in Sign'Stash, follow these steps:

1. Certificate registration: access the back office and register the qualified certificate you obtained from Multicert.
2. Credentials configuration: define the alias and the password associated with your certificate.
3. Validate the service: use the "Validate service" feature to confirm that the certificate is correctly configured and ready to be used for digital signatures.

⚙️ Connect the service to InvoiceXpress

After purchasing the digital signature certificate on the Sign'Stash platform, activation in InvoiceXpress is simple.

1. Go to Settings (in the vertical bar on the left) → Digital Signature.
2. Under Digital signature providers, tick the ✅ box that authorizes InvoiceXpress to access the data, and click Manage Signature. By agreeing to the terms and conditions, you authorize InvoiceXpress to access the private key of your Digital Signature, so that it can sign the documents you issue. This ensures the PDF file cannot be altered by the recipient, and you are responsible for checking the data that appears on the documents issued.

Fill in the Alias and the Password of the digital signature service purchased from Multicert. This information can be found on the Sign'Stash portal, under Client Services > Actions > Details.