For conversion of field &-&, routine & with & parameters was determined

What causes this issue?

During the assignment of conversion routines to newly found tables and
fields will be determined ideally a conversion routine without
parameters. In this case, no conversion routine without parameters
could be determined.

System Response

The program has proposed a conversion routine with as few as possible
parameters.

How to fix this error?

Please, check whether the proposed conversion routine with the proposed
parameters is technically and logically suitable. In case you are not
sure regarding this, please contact SAP for verification.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.