This API can be used to fetch maximum character allowed for user data type of a specific custom field
get /dcapi/customColumn/udtLength
https://{serverurl}/dcapi/customColumn/udtLength
Authorization: Zoho-oauthtoken d92d4xxxxxxxxxxxxx15f52
The table name can be any of the names provided in the list below
1.ManagedComputerCustomFields-if customfield created in computer view
2.InvSWCustomFields-if customfield created in software view.
The actual name of the custom field column for which the User Data Type length is required actualColumnName can be get from the columName key from the response of /dcapi/customFields/computers/{ID}
curl --request GET \
--url 'https://appdomains/dcapi/customColumn/udtLength?tableName=SOME_STRING_VALUE&actualColumnName=SOME_STRING_VALUE' \
--header 'Accept: application/udtLengthDetails.v1+json' \
--header 'Authorization: Zoho-oauthtoken d92d4xxxxxxxxxxxxx15f52'Returns maximum length of the user data type for given custom field
{
"lengthOfUDT": "20"
}
![]()
Duration: 1 minute | Threshold: 30 | Lock period: 5 minutes
Duration - Time window for the threshold.
Threshold - Number of API calls allowed within the specified duration.
Lock Period - Wait time before consecutive API requests.
© 2026, Zoho Corporation Pvt. Ltd. All Rights Reserved.