| 0 | Accessing base cluster, no problem |
| 1 | Accessing base cluster, may be a problem |
| 2 | Accessing alternate index, no problem |
| 3 | Accessing alternate index, may be a problem |
| 4 | Upgrade processing, no problem |
| 5 | Upgrade processing, may be a problem |
| 4 | Read past end of file |
| 8 | Duplicate key |
| 12 | Key sequence error |
| 16 | Not found |
| 20 | Control interval in use by other job |
| 24 | Volume cannot be mounted |
| 28 | Unable to extend dataset |
| 32 | RBA not found |
| 36 | Key is not in a defined key range |
| 40 | Insufficient virtual storage |
| 64 | No available strings |
| 68 | Open did not specify proc type |
| 72 | Key access to ESDS or RRDS |
| 76 | Attempted insert to wrong type dataset |
| 80 | Attempted delete from ESDS |
| 84 | Optcd loc for put request |
| 88 | Position not established |
| 92 | Put without get for update |
| 96 | Trying to change primary key |
| 100 | Trying to change LRECL |
| 104 | Invalid RPL options |
| 108 | Invalid LRECL |
| 112 | Invalid key length |
| 116 | Violated load mode restriction |
| 120 | Wrong task submitting request |
| 132 | Trying to get spanned rec in loc mode |
| 136 | Trying to get spanned rec by address |
| 140 | Inconsistent spanned rec |
| 144 | Alt index pointer with no matching |
| 148 | Exceeded max pointers in alt index rec |
| 152 | Insufficient buffers available |
| 156 | Invalid control interval |
| 192 | Invalid relative rec number |
| 196 | Attempted addressed request to RRDS |
| 200 | Invalid access through a path |
| 204 | Put in backward mode |
| 208 | Invalid ENDREQ macro |
| 252 | Record mode processing is not allowed for a Linear data set |
