Message type: E = Error
Message class:  /SAPCND/MAINTENANCE -  
Message number: 056
Message text: Maintenance of processing status is not supported
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 /SAPCND/MAINTENANCE056 indicates that the maintenance of the processing status is not supported in the context of the operation you are trying to perform. This error typically arises in the context of condition maintenance or when dealing with condition records in SAP.
Cause: Unsupported Operation: The operation you are trying to perform may not be allowed for the current processing status of the condition records. This can happen if the records are locked, in a status that does not allow changes, or if they are in a state that is not compatible with the maintenance operation. Incorrect Configuration: There may be configuration settings in the system that restrict certain operations based on the status of the condition records. Authorization Issues: The user may not have the necessary authorizations to perform the operation on the condition records.
Solution: Check Processing Status: Review the processing status of the condition records you are trying to maintain.
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
/SAPCND/MAINTENANCE055 No text exists for condition table &1 &2 &3
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPCND/MAINTENANCE054 Scale comp. &1 contains other clients than the condition record
What causes this issue?  Client &v2& in scale component &v1& for the condition record is a different to client &v3& in the con...
/SAPCND/MAINTENANCE057 Field &1 has to have the value &2 for R/3 compatibility
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
/SAPCND/MAINTENANCE058 There are no tables with &2 for condition type &1
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.