If you’ve made an error with one of the query parameters, you may see one or more of the following error codes:
| Error code | Error description | |
|---|---|---|
| QF1 | Name is not valid | |
| QF2 | Email is not valid | |
| QF3 | Phone is not valid | |
| QF4 | Amount is not valid | |
| QF5 | Readonly fields are not valid | |
| QF6 | Hidden fields are not valid | |
| QF7 | Signature is not valid | |
| QF10 | Custom field is not valid | |
| QF11 | Signature not specified for link that requires signature | |
| QF12 | Readonly fields not specified for link that requires signature | |
| QF13 | Data to sign invalid for link that requires signature | |
| QF14 | Data to sign not specified for link that requires signature | |
| QF15 | Signature not valid | |
| QF16 | data_amount unacceptable unless Pay what you want is enabled |