ERROR_DS_COUNTING_AB_INDICES_FAILED - 8428 (0x20EC)
The attempt to count the address book indices failed.
Updated: Feb 21, 2026
Technical Meaning
This error code, ERROR_DS_COUNTING_AB_INDICES_FAILED, indicates that an attempt to count the indices of address book entries has failed. Address books in this context typically refer to structured collections of contact information used by various applications.
Error Details
The specific operation that encountered this failure is related to counting or enumerating the indices within an address book structure. This could be due to a variety of issues, such as corrupted data, invalid parameters, or exceeding system limits.
Usage Context
This error can occur in applications that interact with directory services (DS) or address books, particularly when performing operations that require enumeration or counting of entries within these structures. It is not specific to any particular file system operation but rather pertains to the logical structure and integrity of the data being managed.
Developer Interpretation
Developers should interpret this error as an indication that a critical operation failed due to issues with the address book indices. This could be caused by invalid parameters, corrupted data, or exceeding capacity limits. Developers should review their code for any operations involving address books and ensure that all necessary checks are in place.
Related Errors
ERROR_DS_NO_ATTRIBUTE_OR_VALUE(0x2035): Indicates an attribute or value does not exist.ERROR_DS_OBJECTleanor(0x204F): Indicates a general object-related error.ERROR_DS_CANT_RETRIEVE_ATRIBUTE(0x2067): Indicates that the attribute cannot be retrieved.
FAQ
Q: What does this error mean?
A: This error indicates an issue with counting indices in an address book structure, likely due to corrupted data or invalid parameters.
Q: How can I resolve this issue?
A: Review and validate the input parameters for any operations involving address books. Ensure that the address book structures are not corrupted and that all operations adhere to defined limits.
Summary
ERROR_DS_COUNTING_AB_INDICES_FAILED is a specific error code indicating an issue with counting indices in address book entries. Developers should ensure proper validation of inputs and integrity checks to prevent such errors.