How to make a field2 mandatory based on a choice selected from a dropdown field1

[Community Alums]

How to make a field2 mandatory based on a choice selected from a dropdown field1.

[Community Alums · Accepted solution]

Hello @Community Alums  ,

Have a nice day!

There are multiple ways to achieve this. Few of them are as follow:
1. By using UI Policy 

2. By using Client Script

1. By using UI Policy 

To make a field (field2) mandatory based on the selection of a dropdown field (field1) in ServiceNow using a UI policy, follow these simplified steps:

1. Open the form or table where the fields (field1 and field2) are located in ServiceNow.
2. Navigate to the UI Policies related list.
3. Create a new UI policy and give it a name.
4. Set the "Applies on" field to the field1.
5. Add a condition to check if field1 has a specific value. For example, if field1 has a dropdown with "High" and "Medium" options, the condition can be field1 == 'High'.
6. In the UI policy actions section, click on New button. Select field2 and mark it as mandatory.
7. Save the UI policy and test it.
8. Verify this: Now, when a user selects "High" in field1, field2 will become mandatory. If any other option is selected in field1, field2 will not be mandatory.

2. By using client script:

To make a field2 mandatory based on a choice selected from a dropdown field1 in ServiceNow using an onChange client script, you can follow these steps:

1. Create an onChange client script: In ServiceNow, navigate to the form or table where the fields are located. Open the client script section (Client Scripts or UI Scripts) and create a new onChange client script.
2. Select the table, UI type, type, etc.
3. Write the script logic: In the client script, write the JavaScript logic to check the value of field1 and make field2 mandatory accordingly. Here's an example:

var dropdownField = g_form.getValue('dropdownField');
var mandatoryField = g_form.getControl('mandatoryField');

 if (dropdownField === 'specificChoice') {
            mandatoryField.setAttribute('mandatory', 'true');
 } else {
            mandatoryField.removeAttribute('mandatory');
}

4. Save and Test the behavior by selecting different choices in the dropdownField and observing the mandatory status of mandatoryField. Ensure that the mandatoryField behaves as expected based on the selected choice in dropdownField.

If this helped you in any way, please hit the like button/mark it helpful. So it will help others to get the correct solution.

regards,

Prasad

[Community Alums · Accepted solution]

Hello @Community Alums  ,

Have a nice day!

There are multiple ways to achieve this. Few of them are as follow:
1. By using UI Policy 

2. By using Client Script

1. By using UI Policy 

To make a field (field2) mandatory based on the selection of a dropdown field (field1) in ServiceNow using a UI policy, follow these simplified steps:

1. Open the form or table where the fields (field1 and field2) are located in ServiceNow.
2. Navigate to the UI Policies related list.
3. Create a new UI policy and give it a name.
4. Set the "Applies on" field to the field1.
5. Add a condition to check if field1 has a specific value. For example, if field1 has a dropdown with "High" and "Medium" options, the condition can be field1 == 'High'.
6. In the UI policy actions section, click on New button. Select field2 and mark it as mandatory.
7. Save the UI policy and test it.
8. Verify this: Now, when a user selects "High" in field1, field2 will become mandatory. If any other option is selected in field1, field2 will not be mandatory.

2. By using client script:

To make a field2 mandatory based on a choice selected from a dropdown field1 in ServiceNow using an onChange client script, you can follow these steps:

1. Create an onChange client script: In ServiceNow, navigate to the form or table where the fields are located. Open the client script section (Client Scripts or UI Scripts) and create a new onChange client script.
2. Select the table, UI type, type, etc.
3. Write the script logic: In the client script, write the JavaScript logic to check the value of field1 and make field2 mandatory accordingly. Here's an example:

var dropdownField = g_form.getValue('dropdownField');
var mandatoryField = g_form.getControl('mandatoryField');

 if (dropdownField === 'specificChoice') {
            mandatoryField.setAttribute('mandatory', 'true');
 } else {
            mandatoryField.removeAttribute('mandatory');
}

4. Save and Test the behavior by selecting different choices in the dropdownField and observing the mandatory status of mandatoryField. Ensure that the mandatoryField behaves as expected based on the selected choice in dropdownField.

If this helped you in any way, please hit the like button/mark it helpful. So it will help others to get the correct solution.

regards,

Prasad

[Community Alums]

Thankyou!! @Community Alums 

[AndersBGS · Accepted solution]

HI @Utsav JAISWAL ,

The easiest way to make field2 mandatory based on field1 in the same form, is to utilize a UI Policy. By writing the condition when field1 is XXXX, then the UI policy action should be to make filed2 mandatory.

If my answer has helped with your question, please mark my answer as accepted solution and give a thumb up.

Best regards

Anders

[Ankur Bawiskar]

@Community Alums 

I would suggest to use UI policy as mentioned by @AndersBGS