Message type: E = Error
Message class:  FINCS_MD_CONSUNIT - Consolidation Unit Master Data 
Message number: 001
Message text: Language &1 does not exist.
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 FINCS_MD_CONSUNIT001 with the description "Language &1 does not exist" typically indicates that the system is trying to access a language that is not available or not properly configured in the SAP system.
Cause: Missing Language Configuration: The specified language (represented by &1) is not installed or configured in the SAP system. Incorrect Language Code: The language code being referenced may be incorrect or misspelled. User Profile Settings: The user profile may be set to a language that is not supported by the system. Transport Issues: If the language was recently added or transported, there may have been issues during the transport process.
Solution: Check Installed Languages: Go to transaction code SMLT to check the installed languages in your SAP system. Ensure that the language you are trying to use is listed there. Install Missing Language: If the language is not installed, you may need to install it. This can typically be done through the SAP installation
 Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
FINCS_MD_CONSUNIT000 You are not authorized to maintain the consolidation unit.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_ADH103 You cannot process multiple ad hoc item desc. operations in a changeset.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_CONSUNIT002 Currency &1 does not exist.
Self-Explanatory Message Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of...
FINCS_MD_CONSUNIT003 Upload method &1 does not exist.
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.