Message type: E = Error
Message class:  RSDMD - Messages for master data 
Message number: 508
Message text: You do not have authorization for this characteristic variant
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 RSDMD508, which states "You do not have authorization for this characteristic variant," typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when a user attempts to access a characteristic variant for which they do not have the necessary authorizations.
Cause: Authorization Issues: The primary cause of this error is that the user does not have the required authorizations to access the specific characteristic variant. This can happen if the user’s role does not include permissions for the specific data or characteristic being accessed. Missing Roles or Profiles: The user may not have been assigned the appropriate roles or profiles that grant access to the characteristic variant. Characteristic Variant Settings: The characteristic variant itself may have specific settings that restrict access based on user roles or other criteria.
Solution: Check User Authorizations: Use transaction code SU53 immediately after encountering the error to check the authorization check that failed.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
RSDMD507 No variant authorization check possible for characteristic &1
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSDMD506 Decide on either change or display mode
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSDMD509 Data record with this selection not found
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
RSDMD510 Display/maintenance of XL text in gen. UI is restricted to 128/132 CHAR
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.