How To Fix SMIF029 - Invalid Name: &1

SAP Error Message - Details

• Message type: E = Error

• Message class: SMIF - Matching Interfaces

• Message number: 029

• Message text: Invalid Name: &1

What causes this issue?

The entered name of the Matching Object is invalid.
<ZH>Naming Conventions:</>
In a system configured as system type CUS, the first character of the
Matching Object has to be a 'Z' or 'Y'.
In a system configured as system type SAP, the first character of the
Matching Object has to be a alphabetic character - exception: 'Z' or
'Y'.
In case a namespace is used the same is valid for the 1st character of
the Matching Object without the namespace.
Example:
Without namespace:
CUS:,,,,ZABC ,,,,-> is valid
CUS:,,,,AABC,,,,-> is invalid

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

SAP:,,,,ZABC ,,,,-> is invalid
SAP:,,,,AABC,,,,-> is valid
With namespace:
Asumption: /TESTCUS/ and /TESTSAP/ are valid namespaces in the system.
CUS:,,,,/TESTCUS/ZABC ,,,,-> is valid
CUS:,,,,/TESTCUS/AABC,,,,-> is invalid
SAP:,,,,/TESTSAP/ZABC ,,,,-> is invalid
SAP:,,,,/TESTSAP/AABC,,,,-> is valid

Error message extract from SAP system. Copyright SAP SE.