Message type: E = Error
Message class:  RSO_RES_ADSO - Datastore Object 
Message number: 116
Message text: Field name '&1' is too long
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 RSO_RES_ADSO116, which states that "Field name '&1' is too long," typically occurs in the context of SAP BW (Business Warehouse) when working with Advanced DataStore Objects (ADSO). This error indicates that a field name exceeds the maximum length allowed by the system.
Cause: Field Name Length: In SAP BW, field names have a maximum length limit (usually 30 characters). If a field name exceeds this limit, the system will throw this error. Data Source Configuration: The error may arise from the configuration of the data source or the transformation rules where field names are defined or mapped. Naming Conventions: Sometimes, naming conventions or automated processes may generate field names that are longer than the allowed limit.
Solution: Shorten Field Names: Review the field names in your data source or transformation and ensure that they do not exceed the maximum length. Rename fields to shorter, more concise names if necessary. Check Data Source and
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
RSO_RES_ADSO115 Metadata inconsistency in method '&1'. Location: '&2'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSO_RES_ADSO114 Error '&2' during metadata operation in function '&1'
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSO_RES_ADSO117 Field '&1' is not visible in reporting
What causes this issue?  Fields in an aDSO can only be used directly in BW queries if the field name does not exceed the maximum length and the data t...
RSO_RES_ADSO118 Change data type from &1 to &2 for direct reporting
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.