If you want to send invoices and other documents from your own address (e.g. faktury@vasafirma.sk), set up your own SMTP server in Numiron. Below you will find the complete procedure.

Gmail

1. Enable two-factor authentication

Log in to your Google account and go to Security.

In the section How do you sign in to Google you will find an option to enable two-factor authentication (2FA). Activate it.

Then copy the generated password - you will need it in the next step.

3. Setting up email in Numiron

In the top right corner, click on your profile icon and select Settings and switch to the section Emails.

Subsequently, in the section Sending emails via your own server click Add.

Fill in the following details:

Email: your email account (e.g. vasemail@gmail.com),

• login name: the same email as above,

• Guest: smtp.gmail.com,

• port: 587,

• password: enter the generated password for the application,

• click on Create.

Before issuing the first invoice, we recommend setting up all the basic information about your company and customizing the appearance of your documents. This will ensure your invoices contain the correct information and look professional. 

1. Where can I find these settings 

Click on the subject icon in the top right corner. Then in the drop-down menu, click on Settings section will open Entity.  

2. General data 

Check the general data:

• company name, 
• ID, VAT, VAT NUMBER,
• Headquarters (street, municipality, postcode, country),
• Phone, e-mail, web,
  
•  if you need to change, please contact us at info@numiron.sk. 

3. Contact details 

Contact details will automatically appear on your invoices and other documents. 

• phone number 
• contact e-mail 
• websitea

After editing, click on Save. 

2. Appearance and branding of invoices 

Open Settings, in section Entity scroll down the page to the section Visual presentation. 

Click on each zone to upload an image: 

• logo,
• icon,
• Signature of documents.
  

Choose from the default color combinations (main color + complementary color), or write your own color code. 

In this section you can set global defaults for all new documents, or choose to use the data stored directly for a specific customer or supplier for invoices and expenses. 

1. To open the default settings 

In the top right corner, click on the icon of your Profile, Select Settings and switch to the section Accounting. 

2. Configure presets 

You have two options for each of the items: 

Rad - will be used automatically for all new documents. 

Client - The data stored directly at subscriber level shall be used.  

Available fields: 

• Centre - text field + selection from list,
• order - text field + selection from list, 
• activity - text field + selection from list, 
• type of delivery - drop-down list, 
• currency - drop-down list, 
• document language - drop-down list, 
• constant symbol - text field, 
• default description - text field, 
• send delivery note - Yes/No switch. 

3. Saving changes 

Once you have set all the items, remember to click on Save, to activate the preferences for all new documents. 

Numiron allows you to divide your documents by centres, contracts, activities and business focus (SK NACE). This gives you a better overview of your income and expenses, and makes it easier to manage reports and accounting documents. 

1. Activation of zoning 

In the top right corner, click on the icon of your Profile, Select Settings and switch to the section Accounting. 
 

In the section Resorts click on Add. 

Enter title centres (e.g. „Marketing“, „Service“). 

Select color, in which the resort is displayed in the graphs. 

Press Add. 
 

Activate and create in the same way: Contracts (projects, clients) and activities (e.g. „Advice“, „Installation“).

Once saved, these fields will appear whenever you create an invoice, freight or cash receipt, where you can assign the appropriate centre, order or activity.  

2. Filling in the business focus (SK NACE) 

These settings are mainly used for FO tax returns. 

In the top right corner, click on the icon of your Profile, select Settings and switch to the section Accounting. Then scroll down to the section Business focus. 

In the field, search and select the correct EN NACE code (e.g. 62010 - Computer Programming). 

Then specify the main category of income according to your business and optionally add an accounting note (e.g. main activity of the company). Confirm the changes by clicking on Save. 

The numbering series determines how your documents are automatically numbered. You can set them up by year, document type or operation so that you have a clear numbering system. 

1. Opening the number series settings 

In the top right corner, click on the icon of your Profile, Select Settings and switch to the section Billing.  

Then scroll down to the section corresponding to the documents for which you want to set the number series. 

• numerical series of issued documents

• numerical series of documents received 

• numerical cashier board 

2. Create a new number series 

In the corresponding section, click on Create a new queue. 

In the form enter: 

Series name (e.g. „Invoices 2025“). 

Number format: 

You can insert static prefixes (e.g. 2025/FA/) and tokens: 

• {YYYYY} - year 
• {MM} - month 
• {NNN} - sequential number with three digits 

(Optional) Set the default values for this queue:

• type of delivery, 
• constant symbol, 
• default centre, contract, activity, 
• menu (currency),
• Description (introductory sentence of the invoice), 
• document language ,
• whether to add a delivery note as a compulsory annex document.

This option appears when you click on the icon Pera in the right part of the number series record.

Click on Create.  

3. Adjustment or removal of the series 

In the list of number series, click on Pen for modification or for Basket for removal. 

Editing can be done at any time, but changes will only be applied when new documents are created (existing documents will remain unchanged). 

If you delete an invoice or other document, the number series may skip one number. To make the next document follow up correctly, just edit the number series in the settings.

1. Check the last valid number 

In the top right corner, click on the icon of your Profile, Select Settings and switch to the section Billing.  

 
Then scroll down to the section corresponding to the documents for which you want to correct the number series. 

2. Modification of the „Last used number“ 

Click on the icon Pen for a specific number series.  
 

In the field Last used number enter number Before the deleted document (e.g. 0009) and press Save. 

If you need to update your login password, you can do it quickly in your profile. 

1. Open User Settings 

Click on your profile icon in the top right corner a Select Settings. 

Switch to section User and scroll down to the Change password. 

2. Change password 

Fill in the fields Old password, New password 

Click on Change password. 

Two-step verification is an easy way to increase the security of your account. In addition to your password, you'll also confirm access with a one-time code from a mobile app like Google Authenticator, Authy or Microsoft Authenticator when you log in. 

1. Open User Settings 

In the top right corner, click on the icon of your Profile and select Settings. 

Switch to section User and scroll down to the Two-step verification. 

2. How to activate 2FA 

Click Activate next to the Two-Step Verification. 

The screen will display QR code a secret code (or „seed“). 

In 2FA (Google Authenticator, Authy, Microsoft Authenticator): 

Select Add account and then scan the QR code or select manual entry and enter the secret code. 

The app will generate a six-digit authentication code, which you enter into the field in Numiron and click Activate. 

3. How 2FA login works 

The next time you log in, you will first enter your normal login details (email and password). 

Numiron then prompts for a 2FA code - open the app and enter the actual six-digit code. 

4. Why it's worth switching on 2FA 

Account security - even if the password is leaked, no one can log in without a 2FA code. 

Easy to use - just scan the QR code and use the short codes from the app. 

Flexibility - works with all common 2FA applications. 

1. Adding a new member 

Click on the subject icon in the top right corner. Then in the drop-down menu, click on Settings section will open Entity. Scroll down to the members section. 

 In the Email field, enter the address of the person you want to invite and click Add a member. 

Then select a role: 

• Invoice - issues and adjusts invoices. 
• Invoice+ - In addition, it has access to receipts and payments. 
• The Economist - manages expenses, bank imports and cash registers. 
• Admin - Full access, including settings and user management. 

The system automatically sends an invitation to the specified e-mail address. After accepting it and registering, the new member will be added to your account. It is necessary to create an account in the system to the same e-mail address to which the invitation was sent. 

2. Modification or cancellation of membership 

In the section Members you can see an overview of all invited and active users. 
Click on the current role to reassign the member to another role. 

To cancel access completely, click on ❌ by his name.