---
title: "Validations"
slug: "validations"
updated: 2025-06-25T14:32:55Z
published: 2025-06-25T14:32:55Z
canonical: "kb.easysend.io/validations"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://kb.easysend.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Validations

## What are the Model Validations?

Model validations are used to check the integrity of the information that an end-user inputs while interacting with a digital process. The implementation of different validations is done by using Webflow components and data items from the Model.

NOTEFor further assistance in creating validations, please get in touch with our support team.

## 

## How to Implement Validations

Validation is implemented on a transaction data item associated with different Webflow components, such as Text Input and Radio Question. For example, using validations, you can check if an email address was input according to the email address format or turn a field into a required field.

### Validations Usage Example

**Figure 1** displays a Webflow with three Text Input components and a Radio Question component. The email information that the user needs to fill out must be checked and validated to ensure that it is written correctly according to the address structure of an email. In addition, it is mandatory to select a marital status to proceed with the Webflow:

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737476377291.png)

**Figure 1: Webflow Components**

**Figure 2** displays the Model of the Webflow. The Model contains four transaction data items, The email (1) and the phoneNumber (2) transaction data items need to be implemented with appropriate validations:

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737474873374.png)

**Figure 2: The Model**

When clicking the Validations tab (3) an Add field appears (4) where all the existing validations are searchable according to their name (see **Figure 3**):

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737475384690.png)

**Figure 3: Validations**

For the email transaction data item, the appropriate validation is **email (EasySend)()** (5) (see **Figure 4**):

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737475789685.png)

**Figure 4: Email Validation**

For the phoneNumber data item, the appropriate validation is **Numbers Only (EasySend)()** (6) (see **Figure 5**):

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737475987549.png)

**Figure 5: Numbers Only Validation**

NOTE

When a transaction data item is implemented with a validation, the ![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/validations-image-w81swrrd.png)icon appears next to it.

Each added validation can be configured (7) with a custom validation message, instead of a default validation message, which will be displayed when it is triggred (see **Figure 6**):

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737476153132.png)

**Figure 6: Validation Configuration**

The Edit custom validation message window enables to override the default validation message by checking the checkbox (8) and by entering a new custom message (9) (see **Figure 7**):

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1702813130924.png)

**Figure 7: Edit custom validation message**

NOTEThe globe icon is used for entering custom messages if your environment supports multiple languages.

**Figure 8** displays the validation messages when the input data is not valid:

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1737477214244.png)

**Figure 8: Validation Messages**

Important!

- To manage the validations in your environment, navigate to the Validations screen.
- If you added validation in the Model screen and it is not functioning properly, perform a deployment using the Validations screen.
- For detailed information about the Validations screen, see the sections below.
- EasySend does not support required validations such as the Required (EasySend) () validation anymore. To set a data item as required, see the [Required Validation](/v1/docs/validations#the-required-validation) section.
- Previously used required validations are still available, if deleted/removed from the Model page, they cannot be restored.

## The Validations Screen

(See **Figure 9** to **Figure 11**)

A list of validations in your environments can be found under the Validations screen. To access it, click Build (1) and then Validations (2).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1702813687954.png)

**Figure 9: Build -> Validations**

The Validations screen is divided into two sections:

- Custom Validations (3) - displays validations that were custom-built for your environment.
- EasySend Validations (4) - displays built-in EasySend validations.

NOTE

- For a list of built-in EasySend validations, click [here](/v1/docs/validations#builtin-easysend-validations).
- In the Model screen, when a custom validation and an EasySend validation have the same name:
  - The word **EasySend** will appear next to the name of the EasySend Validation.
  - No specification will appear next to a custom validation.
- When adding a validation that was created using the validations bank (not covered in this article), the word **process** will appear next to its name.

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1703752447754.png)

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705302707420.png)

**Figure 10: Validation Screen - Custom and EasySend Validations**

Both sections display the following information:

- Id (5) - the name of the validations. The Id is used when adding the validation in the Model screen.
- Message (6) - the text that will appear when the validation is triggered in the digital process.

NOTEThe globe icon will appear if multiple languages exist in your environment and will allow you to input a message for each language.

- Parameters (7) - the variables the validation needs to function properly. The parameters are used when within the code of the validation.
- Code (8) - contains the validation's lines of code.

NOTEOnly custom validations are editable, for additional information click [here](/v1/docs/validations#adding-a-new-custom-validation).  

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705302675927.png)

**Figure 11: Validations Information**

### Edit Custom Validation

(See **Figure 12** to **Figure 16**)

You can only edit the validations located under the Custom Validations section. To edit, hover over the desired validation and click the pencil icon (1).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1704874504114.png)

**Figure 12: Editing Information**

Clicking the pencil icon displays the Edit Validation window that allows you to edit the:

- Id
- Parameters
- Message
- Code

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1704876560345.png)

**Figure 13: Editing Validation Window**

NOTEBuilt-in EasySend validations can be edited by duplicating them, for additional information, click [here.](/v1/docs/validations#duplicate-a-validation)

The globe icon appears when multiple languages exist in your environment.![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1704876862896.png)

**Figure 14: Globe Icon**

Clicking the globe icon displays a window that allows you to input a message for each language.  
![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1703592566923.png)

**Figure 15:** **Languages**

the code icon (3) allows you to edit the validation code.

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1704877122171.png)

**Figure 16: Code Icon**

Clicking it displays the Edit code window:

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1703593427368.png)

**Figure 17: Edit Code Window**

Important!Editing the code of the validation may prevent it from functioning properly and could compromise the integrity of digital processes that use it. If you require assistance, please get in touch with our support.

### Duplicate a Validation

(See **Figure 18** to **Figure 20**)

Validations from both sections can be duplicated. To duplicate a validation, hover above it and click the icon (1).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1703594401016.png)

**Figure 18: Duplicate Icon**

Clicking the Icon displays the Duplicate Validation window that allows you to edit it.

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1703595665856.png)

**Figure 19: Duplicate Validation Window**

After clicking OK (2), the validation will be added at the bottom of the Custom Validation section (3).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705302832861.png)

**Figure 20: Added Duplicated Validation**

NOTEA duplicated validation will always be added at the bottom of the Custom Validation section.

### Adding a new Custom Validation

(See **Figure 21** to **Figure 23**)

To add a new custom validation, click the + New Validation button (1).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705302903551.png)

**Figure 21: + New Validation**

When the Edit Validation window appears, enter all the required data.

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1704870099993.png)

**Figure 22: Edit Validation Window**

After clicking OK (2), the validation will be added at the bottom of the Custom Validation section (3).

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705303010829.png)

**Figure 23: Added Validation**

### Validations Screen Deployment

(See **Figure 24** to **Figure 26**)

Initiating a deployment process from the Validations screen is needed when:

- Validations are available to add using the Model screen but they are not functioning properly while using the digital process.
- A custom validation was added.
- A custom validation was edited.
- A validation was duplicated.
- A custom validation was deleted.

To initiate the deployment process:

1. Click the Deploy button (1).
2. If necessary, select a relevant server.
3. Wait for the deployment process to finish.

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1705302962392.png)

**Figure 24: Deploy Button**

When deploying to a production environment you immediately apply all changes to open transactions.![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1726168756865.png)

**Figure 25: Deploy to Production**

When deploying a validation to a production environment with version 36.4.0 you can choose whether the changes will be applied to live transactions. After clicking Deploy and selecting a production server, the following message will appear:

![](https://cdn.document360.io/45e1a1b1-1964-46f1-939e-f40bde9b50fa/Images/Documentation/image-1726492808976.png)

**Figure 26: Deploy to Production - Apply to Transactions**

## Built-in EasySend Validations

**Table 1** describes the built-in EasySend validations.

**Table 1: Validations**

| **Number** | **Name** | **Description** | **Parameter/s** |
| --- | --- | --- | --- |
| 1 | Numbers Only | Allows to enter only numeric values | - |
| 2 | Decimal Number | Allows to enter a number or a number with a separator (dot or comma) | - |
| 3 | Decimal Digits | Determines how many digits after the separator (dot or comma) are allowed | digits - a number |
| 4 | Number Range | Allows to enter a specific numeric value or range | - from - a number - to - a number |
| 5 | Greater Than | Allows to enter numbers bigger than a minimum value | min - a number |
| 6 | Less Than | Allows to enter numbers up to a maximum value | max - a number |
| 7 | Letters Only | Allows to enter only letters (in any language, or of one of the supported) | Language, for example: - Any (default) - IL - DE - ES - FR - JA |
| 8 | Email | Checks for a valid email address | - |
| 9 | Cellphone | Checks for a valid cellphone number | Country, for example: - US/SSN - IL - DE - ES - FR - JA |
| 10 | Landline | Checks for a valid landline number | Country, for example: - US/SSN - IL - DE - ES - FR - JA |
| 11 | Date | Checks for date format, supports all separators such as slash (/), dot (.), and dash (-) | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy - mmyy |
| 12 | Past Date | Allows to enter dates up to the current date, supports all separators such as slash (/), dot (.), and dash (-) | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy - mmyy |
| 13 | Future Date | Allows to enter dates from the current date and so on, supports all separators such as slash (/), dot (.), and dash (-) | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy - mmyy |
| 14 | Date Range | Allows to enter a specific date between some date range | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy |
| 15 | Within X days from today | Checks if an entered date is in the range of x days from today, supports all separators such as slash (/), dot (.), and dash (-) | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy |
| 16 | Date X days before today | Checks if an entered date is in the range of x days before today, supports all separators such as slash (/), dot (.), and dash (-) | Format, for example: - ddmmyyyy - mmddyyyy - yyyymmdd - mmyyyy |
| 17 | Length Range | Allows to enter a specific or a range of characters | - from - a number - to - a number |
| 18 | Min Length | Sets the number of characters to be bigger than some value | min - a number |
| 19 | Max Length | Sets the number of characters to be less than some value | max - a number |
| 20 | Exact Length | Allows to enter an exact number of characters | Length - a number |
| 21 | Identification Number | Checks for a valid identification number | Country, for example: - US/SSN - IL - DE - ES - FR - JA |
| 22 | International Bank Account Number (IBAN) | Identifies a valid bank account number | - |
| 23 | File Type | Allows to upload only the specified file types | Format, for example: - pdf - doc - png - jpg - wav |
| 24 | Max File Size | Checks that the file weight does not exceed the specified size | - size - a number - sizeUnit - kb or mb NOTEPlease note that you cannot exceed the size limit of a single uploaded file - 5MB or the size limit of multiple uploaded files - 30MB |
| 25 | Formula Validation | Uses the field value calculated by a formula (must be boolean) | - |
| 26 | Required Checkbox | Checks that a checkbox was marked as true | - |
| 27 | Landline or Cellphone | Checks for a valid landline number or a valid cellphone number | Country, for example: - US/SSN - IL - DE - ES - FR - JA |
| 28 | enforceMaxAttachmentSize | Limits the size of a single uploaded file - to 5MB | - |
| 29 | enforceTotalMaxAttachmentSize | Limits the size of combined uploaded files - to 30MB | - |
| 30 | enforceFinishOngoingUploads | Enforce to wait for files to finish uploading before moving to next page | - |
| 31 | Required | Turns a field into a mandatory field | - |

  

- A required field is indicated by an asterisk (*) next to its name.
- A required data item doesn't display a green V next to its name

## How to Videos

To quickly learn how to use validations, watch the following videos:

- Exact Number of Characters:

[Embedded content](https://www.youtube.com/embed/NwXTmlKt89I?&wmode=opaque&rel=0)

- Maximum Number of Characters:

[Embedded content](https://www.youtube.com/embed/7Sk7XvLn3wU?&wmode=opaque&rel=0)

- Email:

[Embedded content](https://www.youtube.com/embed/ilKEbnR3GYs?&wmode=opaque&rel=0)

- Only Letters:

[Embedded content](https://www.youtube.com/embed/txY532rNWRQ?&wmode=opaque&rel=0)

- Only Numbers:

[Embedded content](https://www.youtube.com/embed/FaxCmeo-svE?&wmode=opaque&rel=0)

- Past Date:

[Embedded content](https://www.youtube.com/embed/qw6F7nIkgAw?&wmode=opaque&rel=0)

- Minimum Number of Characters:

[Embedded content](https://www.youtube.com/embed/PUEBj0p4Kls?&wmode=opaque&rel=0)

- Valid Date:

[Embedded content](https://www.youtube.com/embed/grkBugUnQgQ?&wmode=opaque&rel=0)

- Future Date:

[Embedded content](https://www.youtube.com/embed/M6O62tXDa4M?&wmode=opaque&rel=0)

## Related

- [Model Overview](/model-overview.md)
- [Setting Up the Model](/setting-up-the-model.md)