Hi ​@love tingting,

Thank you for reaching out to the Docusign Community.  

You can find the option of setting up a custom validation configuration for your fields as part of the Field Properties menu, located at the right side of the screen after dropping your field or clicking on the field to edit. An alternative to this method would be adding the validation setup as part of your Custom Field’s settings in Settings>Document Custom Fields. For more details on this topic, see:

Validation Options for Text Fields

Note: Some advanced features and options are supported only in certain Docusign plans. Your account plan might not support some of the options discussed in this help topic. Contact your account administrator for more information about which options are available for your account. Or, visit our Plans and Pricing web page for more details on the features included with your plan. 

Compare eSignature plans & pricing 

Feel free to let us know if you need further assistance with this. 

Best regards,

Alejandro R. | Docusign Community Moderator  

Please click "Best Answer" below if you find my reply to be a valid solution to your issue!

Thank you for relpy

Perhaps my description was ambiguous. I was referring to Envelope Custom Fields, not Custom Fields for document. If there is any relevant information, could you please provide it.thank you very much.

Hi ​@love tingting,

Thank you for following up.

There is no option for Envelope Custom Field validation at this moment. Nevertheless, feedback that can improve our users’ experience is always welcome. I encourage you to consider submitting your idea for review by our development team for possible implementation. If you’re a Docusign Administrator for a corporate plan, you can file your request through a support case or by contacting your Account Team. Otherwise, we invite you to share your product suggestions and feature requests on our dedicated ideas page (https://community.docusign.com/ideas), where we can collaborate to shape the future of our product together.

Please don't hesitate to let me know if you have any other questions or concerns and I will address them as soon as possible.

Best regards,  

Alejandro R. | Docusign Community Moderator  

"Select as Best" below if you find the answer a valid solution to your issue!