How To Fix TR188 - Field & has invalid data type

SAP Error Message - Details

• Message type: E = Error

• Message class: TR - Change and Transport System

• Message number: 188

• Message text: Field & has invalid data type

What causes this issue?

You attempted to enter a name range description for field "&V1&", which
is not a character field. This is not possible due to cross-system
reasons.
The internal data type of the field is: "&V2&"
The following mean:
"F" floating-point number
"I" integer
"P" packed number
"X" hexadecimal
The field has the Dictionay data type: "&V3&"
The following mean:
"FLTP" floating-point number with a precision of 8 bytes
"INT4" 4 bytes integer, signed decimal number
"RAW " uninterpreted sequence of bytes

System Response

The entry was not accepted.

How to fix this error?

Use data type "N", numeric text, for key fields that have numeric
values. This data type is represented with characters.

Error message extract from SAP system. Copyright SAP SE.