| 400 | CPOP_BSSe_IB_REQ_001 | Invalid Request. Null or empty not allowed for field=action |
| 400 | V2_CART-E500001 | failed input validations - productType |
| 400 | OAV_RSNCODE01 | Reason code not allowed for action |
| 400 | OAV_RSNCODE31 | activationDate is missing in the request |
| 400 | OAV_RSNCODE32 | activationDate is invalid |
| 400 | OAV_RSNCODE33 | requestedCompletionDate is invalid |
| 400 | OAV_RSNCODE13 | billCycleDate is missing in the request |
| 400 | OAV_RSNCODE11 | requestedCompletionDate is missing in the request |
| 400 | OAV_RSNCODE14 | requestedCompletionDate does not match with last date of billCycle |