Message type: E = Error
Message class: SV - View Maintenance: Customize Messages
Message number: 178
Message text: Data type STRING in field &1 is not supported.
The table for which a maintenance dialog is to be generated, contains
fields with the data type STRING.
The data type STRING is not supported by the view maintenance (SE54).
No maintenance dialog can be generated. The program is cancelled.
Correct the definition of this field in this table, in the ABAP
Dictionary(SE11).
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.
SV178
- Data type STRING in field &1 is not supported. ?The SAP error message SV178 indicates that there is an issue with the data type being used in a specific field. The message states that the data type "STRING" is not supported for the field indicated by "&1". This typically occurs in scenarios where a function or method is expecting a different data type, such as a character string of a fixed length or a specific structure, rather than a dynamic string.
Cause: Incompatible Data Type: The field in question is defined to accept a specific data type (like CHAR, NUMC, etc.), but a STRING data type is being passed instead. Function Module/Method Limitation: Some function modules or methods in SAP do not support the STRING data type and require a different format. Incorrect Data Mapping: When mapping data from one structure to another, if the source field is of type STRING and the target field does not support it, this error can occur.
Solution: Check
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