Windows error 8316 (ERROR_DS_MISSING_REQUIRED

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The entry is missing an attribute required by its effective object class.

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ERROR_DS_OBJECT_CLASS_REQUIRED	ERROR_DS_ATT_NOT_DEF_FOR_CLASS

ERROR_DS_MISSING_REQUIRED_ATT

A mandatory schema attribute is absent

A class can require attributes through mustContain, systemMustContain, and inherited class definitions. Active Directory validates the effective class hierarchy when an object is created or changed. This result means at least one attribute that must be present for that class set is absent from the resulting entry.

Do not compare only the directly selected class with the request. Mandatory attributes can come from superclasses, and auxiliary classes can add additional schema requirements. The useful diagnostic is the resulting object model: enumerate the class hierarchy, identify mandatory attributes, and compare them with the full Add or Modify request after any server-side behavior is considered.

What to inspect

Resolve all effective objectClass values and inherited mandatory attributes.
Check mustContain and systemMustContain on the class definitions.
Supply the actual required value; adding arbitrary optional attributes will not satisfy the schema.

References

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