Message type: E = Error
Message class: DDLS - For DDL source handling
Message number: 478
Message text: &: A limiting target type &(&,&) is not possible
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.
Unfortunately, there isn't any extra information in this error notice.
First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).
Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.
You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.
The SAP error message DDLS478 typically indicates that there is an issue with the data type or structure of a field in a database table or view that you are trying to create or modify. The message suggests that the target type you are trying to use is not compatible with the operation you are attempting to perform.
Cause: Incompatible Data Types: The error often arises when there is an attempt to assign a data type that is not supported for the target field. For example, trying to assign a long text field to a short text field. Field Length Issues: If the length of the source field exceeds the maximum length allowed for the target field, this error can occur. Data Structure Mismatch: If the structure of the source and target fields do not match in terms of data type or attributes, this error may be triggered. Database Constraints: There may be constraints in
Get instant SAP help. Sign up for our Free Essentials Plan.
DDLS477 Extension category #GROUP_BY or #UNION requires #PROJECTION_LIST
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
DDLS476 Extension category #NONE is not combinable
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
DDLS479 &: DEC, QUAN, CURR, D16N, and D34N are allowed as a target type for INT*
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
DDLS480 &: DEC, CURR, QUAN (not &) allowed as target type
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
Click on this link to search all SAP messages.