In ELMA365, an electronic digital signature (EDS) can be used to sign items of any app: a Standard app, an Event, or a Document. For instance, you can approve and sign a loan request or a contract.
The following types of digital signatures are used in the system:
- Advanced qualified electronic signature. For this type of signature, the public key is contained in a certificate issued by a qualified trust service provider.
- Advanced non-qualified electronic signature. This type of signature is only valid for the participants of the electronic document exchange. It can be used to sign legal documents if the participants agree to it.
Only users who have a certificate issued by a supported provider installed on their PC can use digital signatures in ELMA365.
With a digital signature, you can sign:
- A file uploaded to an app item (for example, a contract in the .docx format).
- An app item’s attributes. Attributes are fields you fill in when creating or editing an app item. For example, a loan request may have the Loaner name, Approver, Loan sum, and Loan security attributes.
Configure a digital signature
Step 1. Enable a digital signature provider module.
Go to Administration > Modules > Digital signature. Enable the appropriate module.
Step 2. Configure the signature settings in the app.
Open the app and click the gear icon next to its name. In the menu, select Signature Settings. There are two sections: Access permissions and Field exclusions.
By default, no one has permission to sign app items. You need to specify the appropriate users, groups, or org chart items in the Users with signing permissions field.
Values of specific fields may change when a business process is executed (for example, the system field Changed on). If a field like this is signed, the signature will become invalid when the field’s value changes.
Two solutions are available:
- Exclude system fields by default. System fields are the fields that are the same for all apps, such as Identifier, Index Number, or Created on. They are added automatically by the system and often used in business processes. If you select this option, all system fields except for Name and File will not be signed. For event type apps, you cannot exclude the Start date and End date.
- Set up the fields manually. Select the fields that should not be signed. The list of fields includes both system fields and the fields you added when creating the app. Make sure you exclude all fields that can change during a business process, such as Status.
Sign an app item
To sign an app item, use the Sign button on the top panel of its page. Note that you first need to add the button to the view form of the app in the Interface designer. When you fully set up an integration with a digital signature provider as described above, the button will become available for users with signing permissions. Click this button and fill out the fields in the window that opens:
- Select signature type. For apps of any type, you can sign the app item’s attributes. For Document type apps, you can also sign the file attached to the app item.
Apart from the file and its attributes, it is possible to sign a decision in the task assigned during an approval business process. To do that, enable the corresponding option in the Approval activity’s when you set up the business process.
Check the boxes with the options you need.
- Select a digital signature provider that issued the certificate you are going to use for signing.
- If needed, grant the operating system access to the certificate file. The certificate selection window will open.
- Specify the certificate.
- Click Sign.
The system checks whether the certificate is valid and notifies once the app item is signed.
Page of a signed app item
Digital signature details are shown on the right panel of the app item page.
Here you can find the following data:
- Signature type (document file or app attributes).
- Date of the signature.
- Signatures archive. The archive keeps the information about all signed versions of the document. Here you can also download a text file with a list of signed attributes and an archive file with the digital signature details.
Until the signature becomes invalid, you cannot sign the same app item again. That’s why the Sign button is hidden from the app item’s page. The signature remains valid until the signed data is changed.
Edit a signed app item
If you edit a signed app item or it’s changed during a business process, the signature becomes invalid. Its status on the right panel changes to Signature not valid, and the Sign button becomes available.
You can sign the app item again. The details of each signature are saved in the Signatures archive, so you can always see who and when signed each version.
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