Steps for removing a custom field

Before you begin: Update or remove applications that use the custom field definition before you remove the definition. If you do not, those applications might fail after you remove the custom field definition.

Perform the following steps to delete the definition of an existing custom field.

Delete all CSDATA values that were previously defined for the custom field you want to remove.
For example, to delete all occurrences of the CODE field in GROUP profiles, execute the database unload utility (IRRDBU00) to locate all CODE keywords in the CSDATA segments of group profiles. Then, issue the following command for each group that has a CSDATA CODE field.
Example:
```
ALTGROUP group CSDATA(NOCODE)
```
(See Using the RACF database unload utility (IRRDBU00) for details about using IRRDBU00.)
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Issue the RDELETE command to remove the custom field definition.
Example:
```
RDELETE CFIELD GROUP.CSDATA.CODE  
```
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Activate your custom field deletion by notifying your system programmer to refresh the dynamic parse definitions by issuing the IRRDPI00 UPDATE command on each system that no longer needs the custom field. (For related information about using IRRDPI00, see Activating a custom field.)
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You have now deleted a custom field and removed any CSDATA values that were previously defined in user and group profiles for the custom field.