How do you delete a parent field on child table?

[warrenjones_ser]

I have a custom table that extends the Task table. That means that my custom table is the child table and Task is the parent table. How can I delete one of the fields from the Task table, let's say the "Activity Due" field, from the column of the custom table. Or is this not achievable? Are you not supposed to be able to delete parent fields?

Thanks for any help on this question

[Pradeep Sharma · Accepted solution]

Hi Warren,

Base system fields cannot be deleted. Additionally, any missing base system fields are recreated when the instance is upgraded

Typically, deleting a field is discouraged. Instead, remove a field from forms and lists.

For custom fields (the field name begins with u_), navigate to the dictionary record for that field and click Delete Column. To access the dictionary record for a field, open the form for that table, right-click the field label, and select Configure Dictionary (Personalize Dictionary in versions prior to Fuji)

Administrators can delete multiple custom fields from the System Dictionary (System Definition > Dictionary).